HIGH severity: Exceeds Fees Limit. The contract owner can increase fees over the allowed limit of 25%.

Vulnerable code:
/**

 *Submitted for verification at Etherscan.io on 2022-12-14

*/





// SPDX-License-Identifier: MIT

pragma solidity ^0.8.4;



abstract contract Context {



    function _msgSender() internal view virtual returns (address payable) {

        return payable(msg.sender);

    }



    function _msgData() internal view virtual returns (bytes memory) {

        this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691

        return msg.data;

    }

}



interface IERC20 {



    function totalSupply() external view returns (uint256);

    function balanceOf(address account) external view returns (uint256);

    function transfer(address recipient, uint256 amount) external returns (bool);

    function allowance(address owner, address spender) external view returns (uint256);

    function approve(address spender, uint256 amount) external returns (bool);

    function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);

    event Transfer(address indexed from, address indexed to, uint256 value);

    event Approval(address indexed owner, address indexed spender, uint256 value);

}



library SafeMath {



    function add(uint256 a, uint256 b) internal pure returns (uint256) {

        uint256 c = a + b;

        require(c >= a, "SafeMath: addition overflow");



        return c;

    }



    function sub(uint256 a, uint256 b) internal pure returns (uint256) {

        return sub(a, b, "SafeMath: subtraction overflow");

    }



    function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {

        require(b <= a, errorMessage);

        uint256 c = a - b;



        return c;

    }



    function mul(uint256 a, uint256 b) internal pure returns (uint256) {

        if (a == 0) {

            return 0;

        }



        uint256 c = a * b;

        require(c / a == b, "SafeMath: multiplication overflow");



        return c;

    }



    function div(uint256 a, uint256 b) internal pure returns (uint256) {

        return div(a, b, "SafeMath: division by zero");

    }



    function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {

        require(b > 0, errorMessage);

        uint256 c = a / b;

        // assert(a == b * c + a % b); // There is no case in which this doesn't hold



        return c;

    }



    function mod(uint256 a, uint256 b) internal pure returns (uint256) {

        return mod(a, b, "SafeMath: modulo by zero");

    }



    function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {

        require(b != 0, errorMessage);

        return a % b;

    }

}



library Address {



    function isContract(address account) internal view returns (bool) {

        // According to EIP-1052, 0x0 is the value returned for not-yet created accounts

        // and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned

        // for accounts without code, i.e. `keccak256('')`

        bytes32 codehash;

        bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;

        // solhint-disable-next-line no-inline-assembly

        assembly { codehash := extcodehash(account) }

        return (codehash != accountHash && codehash != 0x0);

    }



    function sendValue(address payable recipient, uint256 amount) internal {

        require(address(this).balance >= amount, "Address: insufficient balance");



        // solhint-disable-next-line avoid-low-level-calls, avoid-call-value

        (bool success, ) = recipient.call{ value: amount }("");

        require(success, "Address: unable to send value, recipient may have reverted");

    }



    function functionCall(address target, bytes memory data) internal returns (bytes memory) {

      return functionCall(target, data, "Address: low-level call failed");

    }



    function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {

        return _functionCallWithValue(target, data, 0, errorMessage);

    }



    function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {

        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");

    }



    function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {

        require(address(this).balance >= value, "Address: insufficient balance for call");

        return _functionCallWithValue(target, data, value, errorMessage);

    }



    function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) {

        require(isContract(target), "Address: call to non-contract");



        (bool success, bytes memory returndata) = target.call{ value: weiValue }(data);

        if (success) {

            return returndata;

        } else {

            

            if (returndata.length > 0) {

                assembly {

                    let returndata_size := mload(returndata)

                    revert(add(32, returndata), returndata_size)

                }

            } else {

                revert(errorMessage);

            }

        }

    }

}



contract Ownable is Context {

    address private _owner;

    address private _previousOwner;



    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);



    constructor () {

        address msgSender = _msgSender();

        _owner = msgSender;

        emit OwnershipTransferred(address(0), msgSender);

    }



    function owner() public view returns (address) {

        return _owner;

    }   

    

    modifier onlyOwner() {

        require(_owner == _msgSender(), "Ownable: caller is not the owner");

        _;

    }

    

    function waiveOwnership() public virtual onlyOwner {

        emit OwnershipTransferred(_owner, address(0xdead));

        _owner = address(0xdead);

    }



    function transferOwnership(address newOwner) public virtual onlyOwner {

        require(newOwner != address(0), "Ownable: new owner is the zero address");

        emit OwnershipTransferred(_owner, newOwner);

        _owner = newOwner;

    }

   

    function getTime() public view returns (uint256) {

        return block.timestamp;

    }

    

}



interface IUniswapV2Factory {

    event PairCreated(address indexed token0, address indexed token1, address pair, uint);



    function feeTo() external view returns (address);

    function feeToSetter() external view returns (address);



    function getPair(address tokenA, address tokenB) external view returns (address pair);

    function allPairs(uint) external view returns (address pair);

    function allPairsLength() external view returns (uint);



    function createPair(address tokenA, address tokenB) external returns (address pair);



    function setFeeTo(address) external;

    function setFeeToSetter(address) external;

}



interface IUniswapV2Pair {

    event Approval(address indexed owner, address indexed spender, uint value);

    event Transfer(address indexed from, address indexed to, uint value);



    function name() external pure returns (string memory);

    function symbol() external pure returns (string memory);

    function decimals() external pure returns (uint8);

    function totalSupply() external view returns (uint);

    function balanceOf(address owner) external view returns (uint);

    function allowance(address owner, address spender) external view returns (uint);



    function approve(address spender, uint value) external returns (bool);

    function transfer(address to, uint value) external returns (bool);

    function transferFrom(address from, address to, uint value) external returns (bool);



    function DOMAIN_SEPARATOR() external view returns (bytes32);

    function PERMIT_TYPEHASH() external pure returns (bytes32);

    function nonces(address owner) external view returns (uint);



    function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;

    

    event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);

    event Swap(

        address indexed sender,

        uint amount0In,

        uint amount1In,

        uint amount0Out,

        uint amount1Out,

        address indexed to

    );

    event Sync(uint112 reserve0, uint112 reserve1);



    function MINIMUM_LIQUIDITY() external pure returns (uint);

    function factory() external view returns (address);

    function token0() external view returns (address);

    function token1() external view returns (address);

    function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);

    function price0CumulativeLast() external view returns (uint);

    function price1CumulativeLast() external view returns (uint);

    function kLast() external view returns (uint);



    function burn(address to) external returns (uint amount0, uint amount1);

    function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external;

    function skim(address to) external;

    function sync() external;



    function initialize(address, address) external;

}



interface IUniswapV2Router01 {

    function factory() external pure returns (address);

    function WETH() external pure returns (address);



    function addLiquidity(

        address tokenA,

        address tokenB,

        uint amountADesired,

        uint amountBDesired,

        uint amountAMin,

        uint amountBMin,

        address to,

        uint deadline

    ) external returns (uint amountA, uint amountB, uint liquidity);

    function addLiquidityETH(

        address token,

        uint amountTokenDesired,

        uint amountTokenMin,

        uint amountETHMin,

        address to,

        uint deadline

    ) external payable returns (uint amountToken, uint amountETH, uint liquidity);

    function removeLiquidity(

        address tokenA,

        address tokenB,

        uint liquidity,

        uint amountAMin,

        uint amountBMin,

        address to,

        uint deadline

    ) external returns (uint amountA, uint amountB);

    function removeLiquidityETH(

        address token,

        uint liquidity,

        uint amountTokenMin,

        uint amountETHMin,

        address to,

        uint deadline

    ) external returns (uint amountToken, uint amountETH);

    function removeLiquidityWithPermit(

        address tokenA,

        address tokenB,

        uint liquidity,

        uint amountAMin,

        uint amountBMin,

        address to,

        uint deadline,

        bool approveMax, uint8 v, bytes32 r, bytes32 s

    ) external returns (uint amountA, uint amountB);

    function removeLiquidityETHWithPermit(

        address token,

        uint liquidity,

        uint amountTokenMin,

        uint amountETHMin,

        address to,

        uint deadline,

        bool approveMax, uint8 v, bytes32 r, bytes32 s

    ) external returns (uint amountToken, uint amountETH);

    function swapExactTokensForTokens(

        uint amountIn,

        uint amountOutMin,

        address[] calldata path,

        address to,

        uint deadline

    ) external returns (uint[] memory amounts);

    function swapTokensForExactTokens(

        uint amountOut,

        uint amountInMax,

        address[] calldata path,

        address to,

        uint deadline

    ) external returns (uint[] memory amounts);

    function swapExactETHForTokens(uint amountOutMin, address[] calldata path, address to, uint deadline)

        external

        payable

        returns (uint[] memory amounts);

    function swapTokensForExactETH(uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline)

        external

        returns (uint[] memory amounts);

    function swapExactTokensForETH(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline)

        external

        returns (uint[] memory amounts);

    function swapETHForExactTokens(uint amountOut, address[] calldata path, address to, uint deadline)

        external

        payable

        returns (uint[] memory amounts);



    function quote(uint amountA, uint reserveA, uint reserveB) external pure returns (uint amountB);

    function getAmountOut(uint amountIn, uint reserveIn, uint reserveOut) external pure returns (uint amountOut);

    function getAmountIn(uint amountOut, uint reserveIn, uint reserveOut) external pure returns (uint amountIn);

    function getAmountsOut(uint amountIn, address[] calldata path) external view returns (uint[] memory amounts);

    function getAmountsIn(uint amountOut, address[] calldata path) external view returns (uint[] memory amounts);

}



interface IUniswapV2Router02 is IUniswapV2Router01 {

    function removeLiquidityETHSupportingFeeOnTransferTokens(

        address token,

        uint liquidity,

        uint amountTokenMin,

        uint amountETHMin,

        address to,

        uint deadline

    ) external returns (uint amountETH);

    function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(

        address token,

        uint liquidity,

        uint amountTokenMin,

        uint amountETHMin,

        address to,

        uint deadline,

        bool approveMax, uint8 v, bytes32 r, bytes32 s

    ) external returns (uint amountETH);



    function swapExactTokensForTokensSupportingFeeOnTransferTokens(

        uint amountIn,

        uint amountOutMin,

        address[] calldata path,

        address to,

        uint deadline

    ) external;

    function swapExactETHForTokensSupportingFeeOnTransferTokens(

        uint amountOutMin,

        address[] calldata path,

        address to,

        uint deadline

    ) external payable;

    function swapExactTokensForETHSupportingFeeOnTransferTokens(

        uint amountIn,

        uint amountOutMin,

        address[] calldata path,

        address to,

        uint deadline

    ) external;

}



contract bsc is Context, IERC20, Ownable {

    

    using SafeMath for uint256;

    using Address for address;

    

    string private _name = "2023";

    string private _symbol = "2023";

    uint8 private _decimals = 9;



    uint public launchedBlock;

    uint private killblock = 1;

    bool public isLaunch = false;

    address payable public marketingWalletAddress = payable(0x3cD6a50eAc964375D4a0Dd77714439cEDE5D97CF); // Marketing Address

    address payable private teamWalletAddress = payable(0x91eaD34BE8ef2596e0DDC959ffd071D7FbF81665); // Team Address

    address public immutable deadAddress = 0x000000000000000000000000000000000000dEaD;

    

    mapping (address => uint256) _balances;

    mapping (address => mapping (address => uint256)) private _allowances;

    

    mapping (address => bool) public isExcludedFromFee;

    mapping (address => bool) public isWalletLimitExempt;

    mapping (address => bool) public isTxLimitExempt;

    mapping (address => bool) public isMarketPair;

    mapping (address => bool) private _isbclisted;



    uint256 private _buyLiquidityFee = 0;

    uint256 private _buyMarketingFee = 0;

    uint256 private _buyTeamFee = 0;

    

    uint256 private _sellLiquidityFee = 0;

    uint256 private _sellMarketingFee = 3;

    uint256 private _sellTeamFee = 3;

    

    uint256 private _sellReserveFee = 0;



    uint256 private _liquidityShare = 1;

    uint256 private _marketingShare = 2;

    uint256 private _teamShare = 2;



    uint256 public _totalTaxIfBuying = 5;

    uint256 public _totalTaxIfSelling = 5;

    uint256 public _totalDistributionShares = 5;



    uint256 private _totalSupply = 1000000000000000 * 10**_decimals;

    uint256 public _maxTxAmount = 1000000000000000 * 10**_decimals; 

    uint256 public _walletMax = 1000000000000000 * 10**_decimals;

    uint256 private minimumTokensBeforeSwap = 1000000000000 * 3 **_decimals; 



    IUniswapV2Router02 public uniswapV2Router;

    address public uniswapPair;

    

    bool inSwapAndLiquify;

    bool public swapAndLiquifyEnabled = true;

    bool public swapAndLiquifyByLimitOnly = false;

    bool public checkWalletLimit = true;



    event SwapAndLiquifyEnabledUpdated(bool enabled);

    event SwapAndLiquify(

        uint256 tokensSwapped,

        uint256 ethReceived,

        uint256 tokensIntoLiqudity

    );

    

    event SwapETHForTokens(

        uint256 amountIn,

        address[] path

    );

    

    event SwapTokensForETH(

        uint256 amountIn,

        address[] path

    );

    

    modifier lockTheSwap {

        inSwapAndLiquify = true;

        _;

        inSwapAndLiquify = false;

    }

    

    constructor () {

        

        IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x10ED43C718714eb63d5aA57B78B54704E256024E); 



        uniswapPair = IUniswapV2Factory(_uniswapV2Router.factory())

            .createPair(address(this), _uniswapV2Router.WETH());



        uniswapV2Router = _uniswapV2Router;

        _allowances[address(this)][address(uniswapV2Router)] = _totalSupply;



        isExcludedFromFee[owner()] = true;

        isExcludedFromFee[address(this)] = true;

        

        _totalTaxIfBuying = _buyLiquidityFee.add(_buyMarketingFee).add(_buyTeamFee);

        _totalTaxIfSelling = _sellLiquidityFee.add(_sellMarketingFee).add(_sellTeamFee);

        _totalDistributionShares = _liquidityShare.add(_marketingShare).add(_teamShare);



        isWalletLimitExempt[owner()] = true;

        isWalletLimitExempt[address(uniswapPair)] = true;

        isWalletLimitExempt[address(this)] = true;

        

        isTxLimitExempt[owner()] = true;

        isTxLimitExempt[address(this)] = true;



        isMarketPair[address(uniswapPair)] = true;



        _balances[_msgSender()] = _totalSupply;

        emit Transfer(address(0), _msgSender(), _totalSupply);

    }



    function name() public view returns (string memory) {

        return _name;

    }



    function symbol() public view returns (string memory) {

        return _symbol;

    }



    function decimals() public view returns (uint8) {

        return _decimals;

    }



    function totalSupply() public view override returns (uint256) {

        return _totalSupply;

    }



    function balanceOf(address account) public view override returns (uint256) {

        return _balances[account];

    }



    function allowance(address owner, address spender) public view override returns (uint256) {

        return _allowances[owner][spender];

    }



    function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {

        _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));

        return true;

    }



    function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {

        _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));

        return true;

    }



    function minimumTokensBeforeSwapAmount() public view returns (uint256) {

        return minimumTokensBeforeSwap;

    }



    function approve(address spender, uint256 amount) public override returns (bool) {

        _approve(_msgSender(), spender, amount);

        return true;

    }



    function _approve(address owner, address spender, uint256 amount) private {

        require(owner != address(0), "ERC20: approve from the zero address");

        require(spender != address(0), "ERC20: approve to the zero address");



        _allowances[owner][spender] = amount;

        emit Approval(owner, spender, amount);

    }



    function Launch() public onlyOwner {

        isLaunch = true;

        launchedBlock = block.number;

    }



    function setMarketPairStatus(address account, bool newValue) public onlyOwner {

        isMarketPair[account] = newValue;

    }



    function setIsTxLimitExempt(address holder, bool exempt) external onlyOwner {

        isTxLimitExempt[holder] = exempt;

    }

    

    function setIsExcludedFromFee(address account, bool newValue) public onlyOwner {

        isExcludedFromFee[account] = newValue;

    }



    function setBuyTaxes(uint256 newLiquidityTax, uint256 newMarketingTax, uint256 newTeamTax) external onlyOwner() {

        _buyLiquidityFee = newLiquidityTax;

        _buyMarketingFee = newMarketingTax;

        _buyTeamFee = newTeamTax;



        _totalTaxIfBuying = _buyLiquidityFee.add(_buyMarketingFee).add(_buyTeamFee);

    }



    function setSellTaxes(uint256 newLiquidityTax, uint256 newMarketingTax, uint256 newTeamTax) external onlyOwner() {

        _sellLiquidityFee = newLiquidityTax;

        _sellMarketingFee = newMarketingTax;

        _sellTeamFee = newTeamTax;



        _totalTaxIfSelling = _sellLiquidityFee.add(_sellMarketingFee).add(_sellTeamFee);

    }

    

    function setDistributionSettings(uint256 newLiquidityShare, uint256 newMarketingShare, uint256 newTeamShare) external onlyOwner() {

        _liquidityShare = newLiquidityShare;

        _marketingShare = newMarketingShare;

        _teamShare = newTeamShare;



        _totalDistributionShares = _liquidityShare.add(_marketingShare).add(_teamShare);

    }

    

    function setMaxTxAmount(uint256 maxTxAmount) external onlyOwner() {

        _maxTxAmount = maxTxAmount;

    }



    function enableDisableWalletLimit(bool newValue) external onlyOwner {

       checkWalletLimit = newValue;

    }



    function setIsWalletLimitExempt(address holder, bool exempt) external onlyOwner {

        isWalletLimitExempt[holder] = exempt;

    }



    function setWalletLimit(uint256 newLimit) external onlyOwner {

        _walletMax  = newLimit;

    }



    function setNumTokensBeforeSwap(uint256 newLimit) external onlyOwner() {

        minimumTokensBeforeSwap = newLimit;

    }



    function setMarketingWalletAddress(address newAddress) external onlyOwner() {

        marketingWalletAddress = payable(newAddress);

    }



    function setTeamWalletAddress(address newAddress) external onlyOwner() {

        teamWalletAddress = payable(newAddress);

    }



    function setSwapAndLiquifyEnabled(bool _enabled) public onlyOwner {

        swapAndLiquifyEnabled = _enabled;

        emit SwapAndLiquifyEnabledUpdated(_enabled);

    }



    function setSwapAndLiquifyByLimitOnly(bool newValue) public onlyOwner {

        swapAndLiquifyByLimitOnly = newValue;

    }

    

    function getCirculatingSupply() public view returns (uint256) {

        return _totalSupply.sub(balanceOf(deadAddress));

    }



    function transferToAddressETH(address payable recipient, uint256 amount) private {

        recipient.transfer(amount);

    }

    

    function changeRouterVersion(address newRouterAddress) public onlyOwner returns(address newPairAddress) {



        IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(newRouterAddress); 



        newPairAddress = IUniswapV2Factory(_uniswapV2Router.factory()).getPair(address(this), _uniswapV2Router.WETH());



        if(newPairAddress == address(0)) //Create If Doesnt exist

        {

            newPairAddress = IUniswapV2Factory(_uniswapV2Router.factory())

                .createPair(address(this), _uniswapV2Router.WETH());

        }



        uniswapPair = newPairAddress; //Set new pair address

        uniswapV2Router = _uniswapV2Router; //Set new router address



        isWalletLimitExempt[address(uniswapPair)] = true;

        isMarketPair[address(uniswapPair)] = true;

    }



     //to recieve ETH from uniswapV2Router when swaping

    receive() external payable {}



    function transfer(address recipient, uint256 amount) public override returns (bool) {

        _transfer(_msgSender(), recipient, amount);

        return true;

    }



    function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) {

        _transfer(sender, recipient, amount);

        _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));

        return true;

    }



    function isbcList(address account) public view returns(bool) {

        return _isbclisted[account];

    }



    function addBot(address recipient) internal {

        if (!_isbclisted[recipient]) _isbclisted[recipient] = true;

    }



    function setKillBlock(uint num) public onlyOwner {

        killblock = num;

    }



    function writebcList(address recipient, bool isbc) public onlyOwner {

        _isbclisted[recipient] = isbc;

    }



    function _transfer(address sender, address recipient, uint256 amount) private returns (bool) {



        require(sender != address(0), "ERC20: transfer from the zero address");

        require(recipient != address(0), "ERC20: transfer to the zero address");

        require(!_isbclisted[recipient] && !_isbclisted[sender], "bclisted address");



        if(inSwapAndLiquify)

        { 

            return _basicTransfer(sender, recipient, amount); 

        }

        else

        {

            if (!isExcludedFromFee[sender] && !isExcludedFromFee[recipient] && _sellReserveFee > 0) {

                uint _sellReserveFeeAmount = amount.div(100).mul(_sellReserveFee);

                amount = amount.sub(_sellReserveFeeAmount);

            }



            if(!isTxLimitExempt[sender] && !isTxLimitExempt[recipient]) {

                require(amount <= _maxTxAmount, "Transfer amount exceeds the maxTxAmount.");

            }            

                            

            uint256 contractTokenBalance = balanceOf(address(this));

            bool overMinimumTokenBalance = contractTokenBalance >= minimumTokensBeforeSwap;

            

            if (overMinimumTokenBalance && !inSwapAndLiquify && !isMarketPair[sender] && swapAndLiquifyEnabled) 

            {

                if(swapAndLiquifyByLimitOnly)

                    contractTokenBalance = minimumTokensBeforeSwap;

                swapAndLiquify(contractTokenBalance);    

            }



            _balances[sender] = _balances[sender].sub(amount, "Insufficient Balance");

            uint256 finalAmount;

            if (isExcludedFromFee[sender] || isExcludedFromFee[recipient]) {

                finalAmount = amount;

            } else {

                require(isLaunch, "Swap not open");

                if(sender == uniswapPair) {

                    if (block.number <= launchedBlock + killblock) {                  

                        addBot(recipient);

                    }

                }

                finalAmount = takeFee(sender, recipient, amount);

            }



            if(checkWalletLimit && !isWalletLimitExempt[recipient])

                require(balanceOf(recipient).add(finalAmount) <= _walletMax);



            _balances[recipient] = _balances[recipient].add(finalAmount);



            emit Transfer(sender, recipient, finalAmount);

            return true;

            

        }

    }



    function _basicTransfer(address sender, address recipient, uint256 amount) internal returns (bool) {

        _balances[sender] = _balances[sender].sub(amount, "Insufficient Balance");

        _balances[recipient] = _balances[recipient].add(amount);

        emit Transfer(sender, recipient, amount);

        return true;

    }



    function swapAndLiquify(uint256 tAmount) private lockTheSwap {

        

        uint256 tokensForLP = tAmount.mul(_liquidityShare).div(_totalDistributionShares).div(2);

        uint256 tokensForSwap = tAmount.sub(tokensForLP);



        swapTokensForEth(tokensForSwap);

        uint256 amountReceived = address(this).balance;



        uint256 totalBNBFee = _totalDistributionShares.sub(_liquidityShare.div(2));

        

        uint256 amountBNBLiquidity = amountReceived.mul(_liquidityShare).div(totalBNBFee).div(2);

        uint256 amountBNBTeam = amountReceived.mul(_teamShare).div(totalBNBFee);

        uint256 amountBNBMarketing = amountReceived.sub(amountBNBLiquidity).sub(amountBNBTeam);



        if(amountBNBMarketing > 0)

            transferToAddressETH(marketingWalletAddress, amountBNBMarketing);



        if(amountBNBTeam > 0)

            transferToAddressETH(teamWalletAddress, amountBNBTeam);



        if(amountBNBLiquidity > 0 && tokensForLP > 0)

            addLiquidity(tokensForLP, amountBNBLiquidity);

    }

    

    function swapTokensForEth(uint256 tokenAmount) private {

        // generate the uniswap pair path of token -> weth

        address[] memory path = new address[](2);

        path[0] = address(this);

        path[1] = uniswapV2Router.WETH();



        _approve(address(this), address(uniswapV2Router), tokenAmount);



        // make the swap

        uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(

            tokenAmount,

            0, // accept any amount of ETH

            path,

            address(this), // The contract

            block.timestamp

        );

        

        emit SwapTokensForETH(tokenAmount, path);

    }



    function addLiquidity(uint256 tokenAmount, uint256 ethAmount) private {

        // approve token transfer to cover all possible scenarios

        _approve(address(this), address(uniswapV2Router), tokenAmount);



        // add the liquidity

        uniswapV2Router.addLiquidityETH{value: ethAmount}(

            address(this),

            tokenAmount,

            0, // slippage is unavoidable

            0, // slippage is unavoidable

            teamWalletAddress,

            block.timestamp

        );

    }



    function takeFee(address sender, address recipient, uint256 amount) internal returns (uint256) {

        

        uint256 feeAmount = 0;

        

        if(isMarketPair[sender]) {

            feeAmount = amount.mul(_totalTaxIfBuying).div(100);

        }

        else if(isMarketPair[recipient]) {

            feeAmount = amount.mul(_totalTaxIfSelling).div(100);

        }

        

        if(feeAmount > 0) {

            _balances[address(this)] = _balances[address(this)].add(feeAmount);

            emit Transfer(sender, address(this), feeAmount);

        }



        return amount.sub(feeAmount);

    }

    

}

Vulnerability type: CWE-284|CWE-285|CWE-863