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_15v2.py", line 95, in protections
{"method": "CooldownPeriod", "stop_duration_candles": self.cooldown_lookback.value}
^^^^^^^^^^^^^^^^^^^^^^
AttributeError: 'NOTankAi_15v2' object has no attribute 'cooldown_lookback'