Orderselect вернул ошибку 4051

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Помощь нужна.

Ордера на продажу переводит в без убыток нормально, а тралить начинает с ошибки 4051. Выдает 130. Но если условие соответствует, модифицирует.

void OrdersModifiStopLoss(int type){
   for(int omsl = OrdersTotal() - 1; omsl >= 0; omsl--){
      if(OrderSelect(omsl, SELECT_BY_POS, MODE_TRADES)){
         if(OrderSymbol() == Symbol() && OrderMagicNumber() == Magic && OrderType() == type){
            if(type == OP_SELL){
               if(OrderStopLoss() <= 0){
                  if(OrderOpenPrice() - Bid >= SL){
                     stop = OrderOpenPrice();
                     if(OrderModify(OrderTicket(), OrderOpenPrice(), stop, OrderTakeProfit(), 0, clrWhite))
                        Print("Ордер OP_SELL за №", IntegerToString(OrderTicket()), ": модифицирован стоп лосс в безубыток");
                     else{
                        Print("Ордер OP_SELL за №", IntegerToString(OrderTicket()), ": модифицирован стоп лосс в безубыток не удалось. Ошибка №", GetLastError());
                     }
                  }
               }
               if(OrderStopLoss() <= OrderOpenPrice()){
                  if(OrderOpenPrice() - Bid >= SL){
                     stop = OrderStopLoss() - step;
                     if(OrderModify(OrderTicket(), OrderOpenPrice(), stop, OrderTakeProfit(), 0, clrWhite))
                        Print("Ордер OP_SELL за №", IntegerToString(OrderTicket()), ": модифицирован стоп лосс");
                     else{
                        Print("Ордер OP_SELL за №", IntegerToString(OrderTicket()), ": модифицирован стоп лосс не удалось. Ошибка №", GetLastError());
                     }
                  }
               }
            }
            if(type == OP_BUY){
               if(OrderStopLoss() <= 0){
                  if(Bid - OrderOpenPrice() >= SL){
                     stop = OrderOpenPrice();
                     if(OrderModify(OrderTicket(), OrderOpenPrice(), stop, OrderTakeProfit(), 0, clrWhite))
                        Print("Ордер OP_BUY за №", IntegerToString(OrderTicket()), ": модифицирован стоп лосс в безубыток");
                     else{
                        Print("Ордер OP_BUY за №", IntegerToString(OrderTicket()), ": модифицирован стоп лосс в безубыток не удалось. Ошибка №", GetLastError());
                     }
                  }
               }
               if(OrderStopLoss() >= OrderOpenPrice()){
                  if(Bid - OrderStopLoss() >= SL){
                     stop = OrderStopLoss() + step;
                     if(OrderModify(OrderTicket(), OrderOpenPrice(), stop, OrderTakeProfit(), 0, clrWhite))
                        Print("Ордер OP_BUY за №", IntegerToString(OrderTicket()), ": модифицирован стоп лосс");
                     else{
                        Print("Ордер OP_BUY за №", IntegerToString(OrderTicket()), ": модифицирован стоп лосс не удалось. Ошибка №", GetLastError());
                     }
                  }
               }
            }
         }
      }
   }
}

2021.04.15 21:18:45.263    2019.01.24 18:51:05  %WR EURUSD,M15: OrderModify error 130
2021.04.15 21:18:45.263    2019.01.24 18:51:05  %WR EURUSD,M15: Ордер OP_SELL за №33: модифицирован стоп лосс не удалось. Ошибка №130
2021.04.15 21:18:45.263    2019.01.24 18:51:05  %WR EURUSD,M15: OrderModify error 130
2021.04.15 21:18:45.263    2019.01.24 18:51:05  %WR EURUSD,M15: Ордер OP_SELL за №33: модифицирован стоп лосс
2021.04.15 21:18:45.263    2019.01.24 18:51:05  %WR EURUSD,M15: modify #33 sell 0.10 EURUSD at 1.13438 sl: 1.13398 tp: 0.00000 ok
2021.04.15 21:18:45.263    2019.01.24 18:51:04  %WR EURUSD,M15: Ордер OP_SELL за №33: модифицирован стоп лосс не удалось. Ошибка №130
2021.04.15 21:18:45.263    2019.01.24 18:51:04  %WR EURUSD,M15: OrderModify error 130
2021.04.15 21:18:45.263    2019.01.24 18:51:04  %WR EURUSD,M15: Ордер OP_SELL за №33: модифицирован стоп лосс не удалось. Ошибка №130
2021.04.15 21:18:45.263    2019.01.24 18:51:04  %WR EURUSD,M15: OrderModify error 130
2021.04.15 21:18:45.263    2019.01.24 18:51:04  %WR EURUSD,M15: Ордер OP_SELL за №33: модифицирован стоп лосс не удалось. Ошибка №130
2021.04.15 21:18:45.263    2019.01.24 18:51:04  %WR EURUSD,M15: OrderModify error 130
2021.04.15 21:18:45.263    2019.01.24 18:51:03  %WR EURUSD,M15: Ордер OP_SELL за №33: модифицирован стоп лосс
2021.04.15 21:18:45.263    2019.01.24 18:51:03  %WR EURUSD,M15: modify #33 sell 0.10 EURUSD at 1.13438 sl: 1.13418 tp: 0.00000 ok
2021.04.15 21:18:45.263    2019.01.24 18:51:03  %WR EURUSD,M15: Ордер OP_SELL за №33: модифицирован стоп лосс не удалось. Ошибка №4051
2021.04.15 21:18:45.263    2019.01.24 18:51:03  %WR EURUSD,M15: OrderModify error 4051
2021.04.15 21:18:45.263    2019.01.24 18:51:03  %WR EURUSD,M15: invalid stoploss for OrderModify function
2021.04.15 21:18:45.263    2019.01.24 18:51:03  %WR EURUSD,M15: Ордер OP_SELL за №33: модифицирован стоп лосс в безубыток
2021.04.15 21:18:45.263    2019.01.24 18:51:03  %WR EURUSD,M15: modify #33 sell 0.10 EURUSD at 1.13438 sl: 1.13438 tp: 0.00000 ok
2021.04.15 21:18:45.233    2019.01.24 18:15:00  %WR EURUSD,M15: Ордер OP_SELL открыт!

А  с ордерами на покупку все ОКей.

ПС. Нормализация не помогает. Да к тому же все нормализовано в OnInit…

What is MT4 error 4051?

The MT4 error 4051 is a MetaTrader OrderSend error suggesting the trading platform is denying an order due to an invalid trading lot amount.

Whenever an MT4 receives a trade request, it thoroughly examines the parameters of the order. When an EA sends an order request, the system automatically verifies the maximum and minimum limit of trading volumes allowed for the particular entry. At any point, the platform detects an order with a trading lot that you are not permitted to execute; it denies the order request showing ERR_INVALID_FUNCTION_PARAMETER_VALUE.

An OrderSend error 4051 doesn’t necessarily mean the system rejects all the trade requests or disables your trading bot permanently. The MT4 executes an order immediately when it comes with an appropriate amount of trading lot. On the other hand, the restriction over the trading volume prevents your account from suffering unexpected losses due to the wrong parameters of an EA.

Why does MT4 error 4051 happen?

You are exceeding your trading limit

The minimum order limit in MT4 is 0.01 lots, and the maximum limit is 200 lots. If your bot determines a trading lot less than 0.01 or greater than 200, the system will reject the order and show the OrderSend error 4051.

In some cases, your broker server might fail to read the lot amount correctly. For instance, you are trying to execute an order with 0.01 volume, but the minimum order limit of the broker is 0.1. So the server will define the volume as invalid since it turns lesser than the minimum order limit.

Conversely, if you ever try to place an order with more than 200 lots at a time, the MT4 will still refuse to activate the order because it exceeds the maximum trade volume limit.

Your EA is generating inappropriate order parameters

Such problems mainly occur due to an error in EA coding. A malfunction in the programming code may tempt your bot to produce unrealistic trading lot figures which are not recognized as valid parameters by MetaTrader or the broker server.

Apart from an invalid trading lot, your trade can be disallowed for the malfunction of other parameters. For instance, you cannot place a buy order with a stop-loss limit greater than your trade entry or take profit level. These types of problems may happen for two reasons:

• An error in the EA coding
• The EA is not compatible with the trading system

How to fix MT4 error 4051?