IRv2

Traceback (most recent call last):
  File "/freqtrade/freqtrade/main.py", line 42, in main
    return_code = args['func'](args)
                  ^^^^^^^^^^^^^^^^^^
  File "/freqtrade/freqtrade/commands/optimize_commands.py", line 58, in start_backtesting
    backtesting.start()
  File "/freqtrade/freqtrade/optimize/backtesting.py", line 1401, in start
    min_date, max_date = self.backtest_one_strategy(strat, data, timerange)
                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/freqtrade/freqtrade/optimize/backtesting.py", line 1335, in backtest_one_strategy
    results = self.backtest(
              ^^^^^^^^^^^^^^
  File "/freqtrade/freqtrade/optimize/backtesting.py", line 1213, in backtest
    data: Dict = self._get_ohlcv_as_lists(processed)
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/freqtrade/freqtrade/optimize/backtesting.py", line 381, in _get_ohlcv_as_lists
    df_analyzed = self.strategy.ft_advise_signals(pair_data, {'pair': pair})
                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/freqtrade/freqtrade/strategy/interface.py", line 1391, in ft_advise_signals
    dataframe = self.advise_entry(dataframe, metadata)
                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/freqtrade/freqtrade/strategy/interface.py", line 1425, in advise_entry
    df = self.populate_entry_trend(dataframe, metadata)
         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/freqtrade/freqtrade/strategy/interface.py", line 225, in populate_entry_trend
    return self.populate_buy_trend(dataframe, metadata)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/freqtrade/user_data/strategies/IRv2.py", line 478, in populate_buy_trend
    (dataframe["btcrsi_8_1h"] < 35)
TypeError: 'Series' object is not callable