BB Error

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not enough time has passed yet...
BNBUSDT has gained 35.936% in the last 5 minutes, calculating volume in USDT
 preparing to buy 0.23 BNBUSDT
TP or SL reached, selling 0.23 BNBUSDT...
not enough time has passed yet...
No coins moved more than 3% in the last 5 minute(s)
Traceback (most recent call last):
  File "F:\Rudarenje\BOT\BVTB\Binance-volatility-trading-bot-main\Binance Detect Moonings.py", line 285, in <module>
    sell_coins()
  File "F:\Rudarenje\BOT\BVTB\Binance-volatility-trading-bot-main\Binance Detect Moonings.py", line 245, in sell_coins
    TP = float(coins_bought[coin]['bought_at']) + (float(coins_bought[coin]['bought_at']) * TAKE_PROFIT) / 100
TypeError: 'NoneType' object is not subscriptable
[Finished in 609.578s]