cbot terminated unexpectedly

I compiled the following code without error.  But when I ran an instance of the cbot, the was an error.  The process terminated.  I am new to writing cbot.  Just wanted to try opening 2 long trades when threshold price is crossed.  If condition triggered, the buy orders are opened with stop loss and take profits.  Appreciate any help to fix the problem.  thanks

using System;
using cAlgo.API;
using cAlgo.API.Internals;
using cAlgo.API.Indicators;
using cAlgo.Indicators;

namespace cAlgo.Robots
{
    [Robot(TimeZone = TimeZones.UTC, AccessRights = AccessRights.None)]
    public class CustomEA : Robot
    {
        [Parameter("Threshold Price", DefaultValue = 0.0)]
        public double ThresholdPrice { get; set; }

        [Parameter("Limit 1", DefaultValue = 0.0)]
        public double Limit1 { get; set; }

        [Parameter("Limit 2", DefaultValue = 0.0)]
        public double Limit2 { get; set; }

        [Parameter("Stop Loss", DefaultValue = 0.0)]
        public double StopLoss { get; set; }

        [Parameter("Profit 1", DefaultValue = 0.0)]
        public double Profit1 { get; set; }

        [Parameter("Profit 2", DefaultValue = 0.0)]
        public double Profit2 { get; set; }

        private bool ordersCreated = false;

        protected override void OnStart()
        {
            Print("Threshold Price: ", ThresholdPrice);
            Print("Limit 1: ", Limit1);
            Print("Limit 2: ", Limit2);
            Print("Stop Loss: ", StopLoss);
            Print("Profit 1: ", Profit1);
            Print("Profit 2: ", Profit2);
        }

        protected override void OnTick()
        {
            Print("Current price: ", Symbol.Ask);

            if (Symbol.Ask >= ThresholdPrice && !ordersCreated)
            {
                CreateBuyLimitOrder(Limit1, Profit1);
                CreateBuyLimitOrder(Limit2, Profit2);
                ordersCreated = true;
            }
        }

        private void CreateBuyLimitOrder(double limit, double takeProfit)
        {
            var entryPrice = Symbol.Ask - limit * Symbol.PipSize;
            var stopLossPrice = entryPrice - StopLoss * Symbol.PipSize;
            var takeProfitPrice = entryPrice + takeProfit * Symbol.PipSize;

            PlaceLimitOrder(TradeType.Buy, SymbolName, 0.01, entryPrice, "BuyLimit", stopLossPrice, takeProfitPrice);
        }

        protected override void OnStop()
        {
            //
        }
    }
}