cBot works locally but not on the cloud

i have made a custom indicator and used it in a cBot. the bot works perfectly fine when used locally on my PC but does not work when used on the cloud (does not open or close positions) , what could be the reason and how can i solve this ?

This is the custom indicator code :

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

namespace cAlgo
{
    [Indicator(AccessRights = AccessRights.None)]
    public class bullbearpower : Indicator
    {
        [Parameter(DefaultValue = 9)]
        public int Periods { get; set; }

        [Output("BBPhisto", LineColor = "Gray", PlotType = PlotType.Histogram)]
        public IndicatorDataSeries BBPhisto { get; set; }
        
        [Output("BBP Green histo", LineColor = "Green", PlotType = PlotType.Histogram)]
        public IndicatorDataSeries BBPGreenhisto { get; set; }
        
        [Output("BBP Red histo", LineColor = "Red", PlotType = PlotType.Histogram)]
        public IndicatorDataSeries BBPRedhisto { get; set; }
        
        private MovingAverage Hullopen;
        private MovingAverage HullHigh;
        private MovingAverage HullLow;

        protected override void Initialize()
        {

             Hullopen = Indicators.MovingAverage(Bars.OpenPrices, Periods, MovingAverageType.Hull);
             HullHigh = Indicators.MovingAverage(Bars.HighPrices, Periods, MovingAverageType.Hull);
             HullLow = Indicators.MovingAverage(Bars.LowPrices, Periods, MovingAverageType.Hull);
        }

        public override void Calculate(int index)
        {
double hullo = Hullopen.Result[index];
double hullh = HullHigh.Result[index];
double hulll = HullLow.Result[index];
double bullp = hullh - hullo;
double bearp = hulll - hullo;
double BBP = bullp + bearp;

            BBPhisto[index] = BBP;

            if (BBP > 0)
            {
                BBPGreenhisto[index] = BBP;
                BBPRedhisto[index] = 0;
            }
            else
            {
                BBPGreenhisto[index] = 0;
                BBPRedhisto[index] = BBP;
        }
    }
}
}

And this is the cBot code :

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

namespace cAlgo.Robots
{
    [Robot(AccessRights = AccessRights.None, AddIndicators = true)]
    public class Bbpbot : Robot
    {
        [Parameter(DefaultValue = 1)]
        public double Volume { get; set; }

        bullbearpower _BBP;

        protected override void OnStart()
        {
            _BBP = Indicators.GetIndicator<bullbearpower>();
        }

        protected override void OnTick()
        {
            double currentBBP = _BBP.BBPhisto.LastValue;
            double previousBBP = _BBP.BBPhisto.Last(1);
            
            if (currentBBP > 0 && previousBBP <= 0)
            {  
                Open(TradeType.Buy);
                Close(TradeType.Sell);
            }
            else if (currentBBP < 0 && previousBBP >= 0)
            {
                Close(TradeType.Buy);
                Open(TradeType.Sell);
            }
        }

        private void Open(TradeType tradeType)
        {
            if (Positions.Count == 0)
                ExecuteMarketOrder(tradeType, SymbolName, Volume);
        }

        private void Close(TradeType tradeType)
        {
            foreach (var position in Positions)
            {
                if (position.TradeType == tradeType)  // Manually filter positions by TradeType
                {
                    position.Close();
                }
            }
        }

        protected override void OnStop()
        {
            // Handle cBot stop here
        }
    }
}