It takes trade even with wrong condition

Hi, Why in this case the bot takes trades even when the condition is wrong?

Thanks in advance for your help.

 if (_smaTrend1.Result.LastValue < _smaTrend2.Result.LastValue)
               
            {

                if (!IsPositionOpenByType(TradeType.Sell))
                {
                    OpenPosition(TradeType.Sell);
                }

            }

            ClosePosition(TradeType.Buy);
        }


 private void OpenPosition(TradeType type)
        {
            // calculate volume from lot size.
            long volume = Symbol.QuantityToVolume(LotSize);

            // open a new position
            ExecuteMarketOrder(type, this.Symbol, volume, InstanceName, StopLoss, TakeProfit);
        }

        private void ClosePosition(TradeType type)
        {
            var p = Positions.Find(InstanceName, this.Symbol, type);

            if (p != null)
            {
                ClosePosition(p);
            }
        }


private bool IsPositionOpenByType(TradeType type)
        {
            var p = Positions.FindAll(InstanceName, Symbol, type);

            if (p.Count() >= 1)
            {
                return true;
            }

            return false;
        }

        #endregion
    }
}