Nightbot not running commands even after following reset steps

Hi I am head mod for a Twitch channel and setup commands using nightbot. Nightbot stopped working so i advised the the streamer to reset nightbot. I had him use the /unmod nad mod commands then I parted and joined his channel to no avail. I know this works as I have experienced it my other streamer. So I researched and stumbled upon an article where a streamer was having the same issue where these steps were not working; he had recently changed his stream name. This is actually the same scenario for this streamer he just changed his name a few weeks ago. I now notice that the name within nightbot is still showing the previous name. What steps do I have to do, to have nightbot recognize the new channel name? Thank you!