Program: 78364
Project: 78364
Buggy source:
public boolean customerSignUp(String email,String name,String surname,String password,String phoneNumber,Date dateOfBirth,Address address,PaymentMethod paymentMethod){
  if (!(checkCustomerEmail(email))) {
    System.out.println("String_Node_Str");
    return false;
  }
  DBConnector dbConnector=new DBConnector();
  SimpleDateFormat dateFormat=new SimpleDateFormat("String_Node_Str");
  String strBirth=dateFormat.format(dateOfBirth);
  String strExpiration=dateFormat.format(paymentMethod.getExpirationDate());
  try {
    dbConnector.updateDB("String_Node_Str" + paymentMethod.getNumber() + "String_Node_Str"+ paymentMethod.getName()+ "String_Node_Str"+ paymentMethod.getSurname()+ "String_Node_Str"+ strExpiration+ "String_Node_Str"+ paymentMethod.getCvv()+ "String_Node_Str"+ paymentMethod.getAmount()+ "String_Node_Str");
    dbConnector.updateDB("String_Node_Str" + email + "String_Node_Str"+ address.getCountry()+ "String_Node_Str"+ address.getCity()+ "String_Node_Str"+ address.getStreet()+ "String_Node_Str"+ address.getNumber()+ "String_Node_Str"+ address.getCap()+ "String_Node_Str");
    dbConnector.updateDB("String_Node_Str" + email + "String_Node_Str"+ name+ "String_Node_Str"+ surname+ "String_Node_Str"+ password+ "String_Node_Str"+ phoneNumber+ "String_Node_Str"+ strBirth+ "String_Node_Str"+ paymentMethod.getNumber()+ "String_Node_Str");
    dbConnector.closeUpdate();
    return true;
  }
 catch (  SQLException e) {
    e.printStackTrace();
    return false;
  }
}

Fixed version (ground truth):
public boolean customerSignUp(String email,String name,String surname,String password,String phoneNumber,Date dateOfBirth,Address address,PaymentMethod paymentMethod){
  if (!(checkCustomerEmail(email))) {
    System.out.println("String_Node_Str");
    return false;
  }
  DBConnector dbConnector=new DBConnector();
  SimpleDateFormat dateFormat=new SimpleDateFormat("String_Node_Str");
  String strBirth=dateFormat.format(dateOfBirth);
  String strExpiration=dateFormat.format(paymentMethod.getExpirationDate());
  try {
    if (!(checkIfPaymentMethodExists(paymentMethod.getNumber(),paymentMethod.getCvv()))) {
      dbConnector.updateDB("String_Node_Str" + paymentMethod.getNumber() + "String_Node_Str"+ paymentMethod.getName()+ "String_Node_Str"+ paymentMethod.getSurname()+ "String_Node_Str"+ strExpiration+ "String_Node_Str"+ paymentMethod.getCvv()+ "String_Node_Str"+ paymentMethod.getAmount()+ "String_Node_Str");
    }
 else {
      if (!(checkCvv(paymentMethod.getNumber(),paymentMethod.getCvv()))) {
        return false;
      }
    }
    if (checkCustomerEmail(email) && checkDogSitterEmail(email)) {
      dbConnector.updateDB("String_Node_Str" + email + "String_Node_Str"+ address.getCountry()+ "String_Node_Str"+ address.getCity()+ "String_Node_Str"+ address.getStreet()+ "String_Node_Str"+ address.getNumber()+ "String_Node_Str"+ address.getCap()+ "String_Node_Str");
    }
    dbConnector.updateDB("String_Node_Str" + email + "String_Node_Str"+ name+ "String_Node_Str"+ surname+ "String_Node_Str"+ password+ "String_Node_Str"+ phoneNumber+ "String_Node_Str"+ strBirth+ "String_Node_Str"+ paymentMethod.getNumber()+ "String_Node_Str");
    dbConnector.closeUpdate();
    return true;
  }
 catch (  SQLException e) {
    e.printStackTrace();
    return false;
  }
}