Some support please :)

Cant figure out whats wrong i get Invalid Expression term else

protected override void OnPositionClosed(Position closedPosition)
        {
            if (closedPosition.GrossProfit > 0)
            {
                ExecuteOrder(InitialVolume, closedPosition.TradeType);
            }
            if  (closedPosition.GrossProfit < 0 && closedPosition.TradeType == TradeType.Sell);
            {     
                ExecuteOrder((int) position.Volume * 2, TradeType.Buy);
            }
            else if (closedPosition.GrossProfit < 0 && closedPosition.TradeType == TradeType.Buy);
            {
                ExecuteOrder((int) position.Volume * 2, TradeType.Sell);
            }
   }