В чем проблема этого кода EA(экспертная система), что он не работает?

Question

Я использую демо-счет и пытаюсь протестировать очень простого робота EA, который покупает акции только по заранее указанной цене. Я мог бы скомпилировать его без ошибок, но когда я тестирую его на предыдущих данных (в тесте стратегии), он не совершает никакой сделки, хотя условие цены достигает нескольких раз! (Часть истории пуста).

В чем проблема и как я могу это исправить?

#property copyright "xxx"
#property link      "https://www.mql5.com"
#property version   "1.00"

input int      StopLoss=250;      // Stop Loss
input int      TakeProfit=250;   // Take Profit
input int      EA_Magic=12345;   // EA Magic Number
input double   Lot=1000;          // Lots to Trade

double p_close; // Variable to store the close value of a bar
int STP, TKP;   // To be used for Stop Loss & Take Profit values

//+------------------------------------------------------------------+
//| Expert initialization function                                   |
//+------------------------------------------------------------------+
int OnInit()
  {
//---
   STP = StopLoss;
   TKP = TakeProfit;

//---
   return(INIT_SUCCEEDED);
  }
//+------------------------------------------------------------------+
//| Expert deinitialization function                                 |
//+------------------------------------------------------------------+
void OnDeinit(const int reason)
  {
//---

  }
//+------------------------------------------------------------------+
//| Expert tick function                                             |
//+------------------------------------------------------------------+
void OnTick()
  {

      //--- Define some MQL5 Structures we will use for our trade
   MqlTick latest_price;     // To be used for getting recent/latest price quotes
   MqlTradeRequest mrequest;  // To be used for sending our trade requests
   MqlTradeResult mresult;    // To be used to get our trade results
   MqlRates mrate[];         // To be used to store the prices, volumes and spread of each bar
   ZeroMemory(mrequest);     // Initialization of mrequest structure
   MqlTradeCheckResult mmresult;

   /*
     Let's make sure our arrays values for the Rates, ADX Values and MA values 
     is store serially similar to the timeseries array
*/
// the rates arrays
   ArraySetAsSeries(mrate,true);



//--- Get the last price quote using the MQL5 MqlTick Structure
   if(!SymbolInfoTick(_Symbol,latest_price))
     {
      Alert("Error getting the latest price quote - error:",GetLastError(),"!!");
      return;
     }

//--- Get the details of the latest 3 bars
   if(CopyRates(_Symbol,_Period,0,3,mrate)<0)
     {
      Alert("Error copying rates/history data - error:",GetLastError(),"!!");
      ResetLastError();
      return;
     }


   //--- we have no errors, so continue
//--- Do we have positions opened already?
   bool Buy_opened=false;  // variable to hold the result of Buy opened position
   bool Sell_opened=false; // variables to hold the result of Sell opened position

      if(PositionSelect(_Symbol)==true) // we have an opened position
     {
      if(PositionGetInteger(POSITION_TYPE)==POSITION_TYPE_BUY)
        {
         Buy_opened=true;  //It is a Buy
        }
      else if(PositionGetInteger(POSITION_TYPE)==POSITION_TYPE_SELL)
        {
         Sell_opened=true; // It is a Sell
        }
     }

     // Copy the bar close price for the previous bar prior to the current bar, that is Bar 1
         p_close=mrate[1].close;  // bar 1 close price

      if(p_close == 2622 || 2629)
        {
         // any opened Buy position?
         if(Buy_opened)
           {
            Alert("We already have a Buy Position!!!");
            return;    // Don't open a new Buy Position
           }

    ZeroMemory(mrequest);
         mrequest.action = TRADE_ACTION_DEAL;                                  // immediate order execution
   //      mrequest.price = NormalizeDouble(latest_price.ask,_Digits);           // latest ask price
  //       mrequest.sl = NormalizeDouble(latest_price.ask - STP*_Point,_Digits); // Stop Loss
   //      mrequest.tp = NormalizeDouble(latest_price.ask + TKP*_Point,_Digits); // Take Profit
         mrequest.symbol = _Symbol;                                            // currency pair
         mrequest.volume = Lot;                                                 // number of lots to trade
         mrequest.magic = EA_Magic;                                             // Order Magic Number
         mrequest.type = ORDER_TYPE_BUY;                                        // Buy Order
         mrequest.type_filling = ORDER_FILLING_IOC; //ORDER_FILLING_FOK;                             // Order execution type
         mrequest.deviation=100;                                                // Deviation from current price
         //--- send order
       //  OrderSend(mrequest,mresult);

         if(OrderSend(mrequest,mresult)) 
         Print("Everything is OK");
          else Alert("There is a problem here");

         if(OrderCheck(mrequest,mmresult)) 
         Print("Everything is OK");
          else Alert("There is a problem hereee");



         // get the result code
         if(mresult.retcode==10009 || mresult.retcode==10008) //Request is completed or order placed
           {
            Alert("A Buy order has been successfully placed with Ticket#:",mresult.order,"!!");
           }
         else
           {
            Alert("The Buy order request could not be completed -error:",GetLastError());
            ResetLastError();           
            return;
           }

      }

  }

РЕДАКТИРОВАТЬ: я снова проверил свой код, когда рынок открыт и получил эти сообщения с предупреждением:

There is a problem here
There is a problem hereee
The Buy order request could not be completed -error:4756