Mt4 ошибка 138

Здравствуйте, есть такой вопрос, почему появляется ошибка 138,переменная становится Price=0 время от времени, как решить эту проблему?

Как только отложенный ордер исполняется, необходимо установить новый отложник в противоположную сторону по цене stop loss того ордера, который в рынке. Когда срабатывает лось должен исполнится новый отложенник и т.д. Не получается грамотно сделать(

Кусок кода:

if ((Total<=1) && (N>1))
{ 
if ((N==3) || (N==5) || (N==7) || (N==9) || (N==11) || (N==13) || (N==15))
Price=Price1;
if ((N==2) || (N==4) || (N==6) || (N==8) || (N==10) || (N==12) || (N==14))
Price=Price2; 

} 


while(true) 
{
if (Total<=1) //Total - кол-во имеющихся ордеров, в рынке и отложенных 
{ 
RefreshRates(); 
if ((N==1) && (Type==OP_BUY)) //N-номер ордера в серии ордеров
{SL=Ask - 12*Point; //Price1 и Price2 являются static
TP=Ask + takeprofit*Point;
Price=Ask;
Price1=Ask;
Price2=SL;
}
if ((N>1) && (Type==OP_BUYSTOP))
{SL=Price - 12*Point;
TP=Price + takeprofit*Point;
} 
if ((N==1) && (Type==OP_SELL))
{SL=Ask + 12*Point;
TP=Ask - takeprofit*Point;
Price=Bid;
Price1=Bid;
Price2=SL;
} 
if ((N>1) && (Type==OP_SELLSTOP))
{SL=Price + 12*Point;
TP=Price - takeprofit*Point;
} 

Alert("Попытка открыть ",Type,". Ожидание ответа..");
Ticket=OrderSend(Symb,Type,Lts,Price,2,SL,TP," ",N);
if (Ticket > 0) 
{
Alert ("Открыт ордер ",Ticket); 
}
if (Fun_Error(GetLastError())==1) 
continue; 
return; 
}
break; 
}

The MT4 error 138 indicates a price requote issue of the MetaTrader4 platform. This error code may appear when you attempt to execute an order during a highly volatile market.

An error code 138 means the MT4 platform has missed your quoted price for executing an order. In such a situation, your trading platform cancels the current order and requotes another price as an option for re-executing the order. When you visit the platform’s journal at its terminal, you will see the software showing the message “OrderSend error 138”.

Why does MT4 error 138 happen?

Your MT4 platform may show an error code 138 for several reasons:

Slippage

A slippage refers to the difference between the current price and the execution price of a particular trade. A slippage occurs mostly in a highly volatile market when the price rapidly changes every second. For example, you place a buy order (instant execution) of EURUSD on 1.2019. By the time you click on “buy” the price already reaches 1.2021. When the MT4 platform finds such a difference between the execution and actual price, it withdraws the order and shows the error code 138.

Connection dropouts

For any reason, your internet connection dropouts during the execution of an order will also show an error code 138. It happens when your platform gets disconnected from the internet right after you place an order. As a result, your MT4 platform fails to find the price you have quoted due to the connection dropout and shows the OrderSend error signal.

How to fix MT4 requotes?

I get ordersend error 138, be it buy or sell, but only in back testing not in live demo. I have try to adjust slippage to no avail. Does anyone have any idea what’s wrong?

double price = iClose(Symbol(), PERIOD_H1, 1);
   if (up > down && up > sideway){
      double stoploss = NormalizeDouble(price-piploss*Point, Digits);
      double takeprofit = NormalizeDouble(price+pipgain*Point, Digits);
      int ticket = OrderSend(Symbol(), OP_BUY, 1, price, 5, stoploss, takeprofit, "buy", 16384, 0, clrGreen);
      if (ticket<0){
         Print("Order send error: ", GetLastError());
      } else{
         Print("Order success");
      }
   } else if (down > up && down > sideway) {
      double stoploss = NormalizeDouble(price+piploss*Point, Digits);
      double takeprofit = NormalizeDouble(price-pipgain*Point, Digits);
      int ticket = OrderSend(Symbol(), OP_SELL, 1, price, 5, stoploss, takeprofit, "sell", 16384, 0, clrGreen);
      if (ticket<0){
         Print("Order send error: ", GetLastError());
      } else{
         Print("Order success");
      }
   } else {
      Print("sideway");
   }
     }