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 1308, in backtest_one_strategy
    self._set_strategy(strat)
  File "/freqtrade/freqtrade/optimize/backtesting.py", line 224, in _set_strategy
    self.strategy.ft_bot_start()
  File "/freqtrade/freqtrade/strategy/interface.py", line 191, in ft_bot_start
    self.ft_load_hyper_params(self.config.get('runmode') == RunMode.HYPEROPT)
  File "/freqtrade/freqtrade/strategy/hyper.py", line 114, in ft_load_hyper_params
    self._ft_load_params(buy_params, 'buy', hyperopt)
  File "/freqtrade/freqtrade/strategy/hyper.py", line 147, in _ft_load_params
    for attr_name, attr in detect_parameters(self, space):
  File "/freqtrade/freqtrade/strategy/hyper.py", line 191, in detect_parameters
    attr = getattr(obj, attr_name)
           ^^^^^^^^^^^^^^^^^^^^^^^
  File "/freqtrade/user_data/strategies/NOTankAi_15_unlookahead_v5_hyperopt.py", line 92, in protections
    "stop_duration_candles": self.cooldown_lookback.value
                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AttributeError: 'int' object has no attribute 'value'