Kitchen nightmares season 9

I can’t seem to mark it as watched or find it on trakt. Does anyone know why?

Season 9 is actually Season 2 of: Kitchen Nightmares - Trakt

TMDB, our datasource, split the show because the original channel restarted the numbering. You can read more about this here: Reported Problem for Kitchen Nightmares — The Movie Database (TMDB)