Program: 42059
Project: 42059
Buggy source:
public boolean exec(IPlayer player){
  if (player.hasPermission(PermissionNames.ADMIN_RESET) || player.hasPermission("String_Node_Str")) {
    IWorld world=player.getWorld();
    PlotMapInfo pmi=manager.getMap(world);
    if (manager.isPlotWorld(world)) {
      Plot plot=manager.getPlotById(player,pmi);
      if (plot == null) {
        player.sendMessage("String_Node_Str" + C("String_Node_Str"));
      }
 else       if (plot.isProtect()) {
        player.sendMessage("String_Node_Str" + C("String_Node_Str"));
      }
 else {
        String id=plot.getId();
        if (plot.getOwnerId().equals(player.getUniqueId()) || player.hasPermission(PermissionNames.ADMIN_RESET)) {
          InternalPlotResetEvent event=serverBridge.getEventFactory().callPlotResetEvent(plugin,world,plot,player);
          if (!event.isCancelled()) {
            manager.setBiome(world,id,serverBridge.getBiome("String_Node_Str"));
            manager.clear(world,plot,player,ClearReason.Reset);
            if (manager.isEconomyEnabled(pmi)) {
              if (plot.isAuctioned()) {
                if (plot.getCurrentBidderId() != null) {
                  IOfflinePlayer offlinePlayer=serverBridge.getOfflinePlayer(plot.getCurrentBidderId());
                  EconomyResponse economyResponse=serverBridge.depositPlayer(offlinePlayer,plot.getCurrentBid());
                  if (economyResponse.transactionSuccess()) {
                    player.sendMessage(plot.getCurrentBidder() + "String_Node_Str");
                  }
 else {
                    player.sendMessage(economyResponse.errorMessage);
                    serverBridge.getLogger().warning(economyResponse.errorMessage);
                  }
                }
              }
              if (pmi.isRefundClaimPriceOnReset() && plot.getOwnerId() != null) {
                IOfflinePlayer playerowner=serverBridge.getOfflinePlayer(plot.getOwnerId());
                EconomyResponse er=serverBridge.depositPlayer(playerowner,pmi.getClaimPrice());
                if (er.transactionSuccess()) {
                  IPlayer playerOwner=serverBridge.getPlayer(playerowner.getUniqueId());
                  if (playerOwner.getName().equalsIgnoreCase(plot.getOwner())) {
                    playerOwner.sendMessage(C("String_Node_Str") + "String_Node_Str" + id+ "String_Node_Str"+ C("String_Node_Str")+ "String_Node_Str"+ plot.getOwner()+ "String_Node_Str"+ C("String_Node_Str")+ "String_Node_Str"+ Util().moneyFormat(pmi.getClaimPrice(),true));
                  }
                }
 else {
                  player.sendMessage("String_Node_Str" + er.errorMessage);
                  serverBridge.getLogger().warning(er.errorMessage);
                  return true;
                }
              }
            }
            if (!manager.isPlotAvailable(id,pmi)) {
              manager.removePlot(pmi,id);
            }
            manager.removeOwnerSign(world,id);
            manager.removeSellSign(world,id);
            plugin.getSqlManager().deletePlot(manager.getIdX(id),manager.getIdZ(id),world.getName());
            if (isAdvancedLogging()) {
              serverBridge.getLogger().info(player.getName() + "String_Node_Str" + C("String_Node_Str")+ "String_Node_Str"+ id);
            }
          }
        }
 else {
          player.sendMessage("String_Node_Str" + C("String_Node_Str") + "String_Node_Str"+ id+ "String_Node_Str"+ C("String_Node_Str"));
        }
      }
    }
 else {
      player.sendMessage("String_Node_Str" + C("String_Node_Str"));
    }
  }
 else {
    player.sendMessage("String_Node_Str" + C("String_Node_Str"));
    return false;
  }
  return true;
}

Fixed version (ground truth):
public boolean exec(IPlayer player){
  if (player.hasPermission(PermissionNames.ADMIN_RESET) || player.hasPermission("String_Node_Str")) {
    IWorld world=player.getWorld();
    PlotMapInfo pmi=manager.getMap(world);
    if (manager.isPlotWorld(world)) {
      Plot plot=manager.getPlotById(player,pmi);
      if (plot == null) {
        player.sendMessage("String_Node_Str" + C("String_Node_Str"));
      }
 else       if (plot.isProtect()) {
        player.sendMessage("String_Node_Str" + C("String_Node_Str"));
      }
 else {
        String id=plot.getId();
        if (plot.getOwnerId().equals(player.getUniqueId()) || player.hasPermission(PermissionNames.ADMIN_RESET)) {
          InternalPlotResetEvent event=serverBridge.getEventFactory().callPlotResetEvent(plugin,world,plot,player);
          if (!event.isCancelled()) {
            manager.setBiome(world,id,serverBridge.getBiome("String_Node_Str"));
            manager.clear(world,plot,player,ClearReason.Reset);
            if (manager.isEconomyEnabled(pmi)) {
              if (plot.isAuctioned()) {
                if (plot.getCurrentBidderId() != null) {
                  IOfflinePlayer offlinePlayer=serverBridge.getOfflinePlayer(plot.getCurrentBidderId());
                  EconomyResponse economyResponse=serverBridge.depositPlayer(offlinePlayer,plot.getCurrentBid());
                  if (economyResponse.transactionSuccess()) {
                    player.sendMessage(plot.getCurrentBidder() + "String_Node_Str");
                  }
 else {
                    player.sendMessage(economyResponse.errorMessage);
                    serverBridge.getLogger().warning(economyResponse.errorMessage);
                  }
                }
              }
              if (pmi.isRefundClaimPriceOnReset() && plot.getOwnerId() != null) {
                IOfflinePlayer playerowner=serverBridge.getOfflinePlayer(plot.getOwnerId());
                EconomyResponse er=serverBridge.depositPlayer(playerowner,pmi.getClaimPrice());
                if (er.transactionSuccess()) {
                  IPlayer playerOwner=serverBridge.getPlayer(playerowner.getUniqueId());
                  if (playerOwner.getName().equalsIgnoreCase(plot.getOwner())) {
                    playerOwner.sendMessage(C("String_Node_Str") + "String_Node_Str" + id+ "String_Node_Str"+ C("String_Node_Str")+ "String_Node_Str"+ plot.getOwner()+ "String_Node_Str"+ C("String_Node_Str")+ "String_Node_Str"+ Util().moneyFormat(pmi.getClaimPrice(),true));
                  }
                }
 else {
                  player.sendMessage("String_Node_Str" + er.errorMessage);
                  serverBridge.getLogger().warning(er.errorMessage);
                  return true;
                }
              }
            }
            if (!manager.isPlotAvailable(id,pmi)) {
              manager.removePlot(pmi,id);
            }
            manager.removeOwnerSign(world,id);
            manager.removeSellSign(world,id);
            manager.removeAuctionSign(world,id);
            plugin.getSqlManager().deletePlot(manager.getIdX(id),manager.getIdZ(id),world.getName());
            if (isAdvancedLogging()) {
              serverBridge.getLogger().info(player.getName() + "String_Node_Str" + C("String_Node_Str")+ "String_Node_Str"+ id);
            }
          }
        }
 else {
          player.sendMessage("String_Node_Str" + C("String_Node_Str") + "String_Node_Str"+ id+ "String_Node_Str"+ C("String_Node_Str"));
        }
      }
    }
 else {
      player.sendMessage("String_Node_Str" + C("String_Node_Str"));
    }
  }
 else {
    player.sendMessage("String_Node_Str" + C("String_Node_Str"));
    return false;
  }
  return true;
}