Update Token
If you changed the Token (Key) of the bot in @BotFather and for this reason your bot stopped responding to commands, you need to replace the old Token in the constructor with a new one.
Previously, this required to Delete the bot in the Constructor and add it again with a new token.
Recently, cases have become more frequent when Telegram forcibly renews bot tokens on its servers, referring to the fact that they could be available in the public field. There is a possibility that such things may be related to updating the security algorithm of Telegram itself. Either way, such things are not directly related to the MenuBuilderBot constructor itself.
The Token accepted is only from the same bot. Changing the ID of the bot is obviously IMPOSSIBLE.
For information on how to change the Token in @BotFather, see «BotFather - features and functionality».