Help please, i got that error at BCHUSD pair
strategy is
"bbgain": {
"BTC_TRADING_LIMIT": 0.80,
"PERIOD": 15,
"HIGH_BB": 40,
"LOW_BB": 40,
"GAIN": 2,
"DOUBLE_UP": true,
"MIN_VOLUME_TO_BUY": 0.20,
"MIN_VOLUME_TO_SELL": 0.20,
"STOP_LIMIT": 60,
"BUY_ENABLED": true,
"PANIC_SELL": false,
"EMA1": 50,
"EMA2": 40