Put-Call-Ratio-missing-from-DataExtensions

CODE:

using WealthLab.Backtest;
using System;
using WealthLab.Core;
using WealthLab.Data;
using WealthLab.Indicators;
using System.Collections.Generic;


namespace WealthScript3 
{
    public class MyStrategy : UserStrategyBase
    {
       public MyStrategy() : base()
        {

            StartIndex = 0;
        }

        public override void Initialize(BarHistory bars)
        {
             indicator = bars.PutCallRatio;
            foreach(IndicatorBase ib in _startIndexList)
                if (ib.FirstValidIndex > StartIndex)
                    StartIndex = ib.FirstValidIndex;
        }


        public override void Execute(BarHistory bars, int idx)
        {
         int index = idx;
         Position foundPosition0 = FindOpenPosition(0);
         bool condition0;
         if (foundPosition0 == null)
         {
            condition0 = false;
            {
               if (indicator[index] >= 1.1)
               {
                  condition0 = true;
               }
            }
            if (condition0)
            {
               Backtester.CancelationCode = 1;
               _transaction = PlaceTrade(bars, TransactionType.Buy, OrderType.Market, 0, 0, "Buy At Market (1)");
            }
         }
         else
         {
         }

        }


        public override void NewWFOInterval(BarHistory bars)
        {
         indicator = bars.PutCallRatio;

        }

      private TimeSeries indicator;

      private Transaction _transaction;
               private List<IndicatorBase> _startIndexList = new List<IndicatorBase>();
    }
}