Tester only shows sell symbols

[capissimo]

My EA in tester only shows sells. At the same time the journal registers both sells and buys. 

Notice the vertical dotted lines which must be interconnected between the buys and the sells during backtesting in the normal situation. Ple explain what's wrong with the settings?? The code is as follows.

#include <Trade/Trade.mqh>

input double Lots = 0.1;

input ENUM_TIMEFRAMES Timeframe = PERIOD_H1;
input int Periods = 100;
input ENUM_MA_METHOD MaMethod = MODE_SMA;

int maHandle;
int barsTotal;
int maDirection;

CTrade trade;

int OnInit(){
   maHandle = iMA(_Symbol,Timeframe,Periods,0,MaMethod,PRICE_CLOSE);
   barsTotal = iBars(_Symbol,Timeframe);
   return(INIT_SUCCEEDED);
}

void OnDeinit(const int reason){}

void OnTick(){
   int bars = iBars(_Symbol,Timeframe);
   if(barsTotal < bars){
      barsTotal = bars;
      
      double ma[];
      CopyBuffer(maHandle,MAIN_LINE,1,2,ma);
      
      double lots = (int)(Lots/SymbolInfoDouble(_Symbol,SYMBOL_VOLUME_STEP)) * SymbolInfoDouble(_Symbol,SYMBOL_VOLUME_STEP);
      lots = MathMin(lots,SymbolInfoDouble(_Symbol,SYMBOL_VOLUME_MAX));
      lots = MathMax(lots,SymbolInfoDouble(_Symbol,SYMBOL_VOLUME_MIN));
           
      if(ma[1] < ma[0] && maDirection >= 0){
         maDirection = -1;
         
         trade.PositionClose(_Symbol);
         trade.Sell(lots, _Symbol, bid);
      }else if(ma[1] > ma[0] && maDirection <= 0){
         maDirection = 1;
         
         trade.PositionClose(_Symbol);
         trade.Buy(lots, _Symbol, ask);
      }
      
      Comment("\nDirection: ",maDirection,
              "\nma[0]: ",DoubleToString(ma[0],_Digits),
              "\nma[1]: ",DoubleToString(ma[1],_Digits));
   }
}

[capissimo]

SOLVED by reinstall.