after activating the bot I get some error

[shreesha345]

Traceback (most recent call last): File ".\whatsapp.py", line 52, in <module> activate_bot(driver) File "D:\Chat_bot-0.1.0-alpha\Chat_bot-0.1.0-alpha\whatsapp_bot\code\core\chat_bot.py", line 37, in activate_bot msg = read_last_msg(driver) File "D:\Chat_bot-0.1.0-alpha\Chat_bot-0.1.0-alpha\whatsapp_bot\code\utils\get_msg.py", line 26, in read_last_msg return messages[-1] IndexError: list index out of range

I did not understand what mistake I did please help me to fix it..