MACD CANDLE --- Can anyone Please Help Me Fix the code?

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

namespace cAlgo.Indicators
{
    [Indicator(IsOverlay = true, TimeZone = TimeZones.UTC, AutoRescale = false, ScalePrecision = 4, AccessRights = AccessRights.None)]
    public class MACDCandle : Indicator
    {
        private ExponentialMovingAverage fastEMA;
        private ExponentialMovingAverage slowEMA;
        private MovingAverageConvergenceDivergence macd;

        [Parameter("Fast EMA Period", DefaultValue = 12, MinValue = 2, MaxValue = 100, Step = 1)]
        public int FastPeriod { get; set; }

        [Parameter("Slow EMA Period", DefaultValue = 26, MinValue = 2, MaxValue = 100, Step = 1)]
        public int SlowPeriod { get; set; }

        [Parameter("Signal Period", DefaultValue = 9, MinValue = 1, MaxValue = 100, Step = 1)]
        public int SignalPeriod { get; set; }

        [Output("MACD", Color = Colors.Red, LineStyle = LineStyle.Lines)]
        public IndicatorDataSeries MACD { get; set; }

        [Output("Signal", Color = Colors.Blue, LineStyle = LineStyle.Lines)]
        public IndicatorDataSeries Signal { get; set; }

        [Output("Histogram", Color = Colors.Green, LineStyle = LineStyle.Histogram)]
        public IndicatorDataSeries Histogram { get; set; }

        protected override void Initialize()
        {
            fastEMA = Indicators.ExponentialMovingAverage(MarketData.GetPrice(PriceType.Close), FastPeriod);
            slowEMA = Indicators.ExponentialMovingAverage(MarketData.GetPrice(PriceType.Close), SlowPeriod);
            macd = Indicators.MovingAverageConvergenceDivergence(fastEMA.Result, slowEMA.Result, SignalPeriod);
        }

        public override void Calculate(int index)
        {
            MACD[index] = macd.Macd[index];
            Signal[index] = macd.Signal[index];
            Histogram[index] = macd.Histogram[index];

            // Optional: plot MACD as a candle
            if (MACD[index] > Signal[index])
            {
                ChartObjects.DrawText("macd_candle" + index, "↑", index, MACD[index], VerticalAlignment.Center, HorizontalAlignment.Center, Colors.Green);
                ChartObjects.DrawLine("macd_candle_line" + index, index, MACD[index], index + 1, MACD[index], Colors.Green, 2, LineStyle.Solid);
            }
            else if (MACD[index] < Signal[index])
            {
                ChartObjects.DrawText("macd_candle" + index, "↓", index, MACD[index], VerticalAlignment.Center, HorizontalAlignment.Center, Colors.Red);
                ChartObjects.DrawLine("macd_candle_line" + index, index, MACD[index], index