Unfortunately, this bug has been around for ages
https://www.reddit.com/r/BaldursGate3/comments/1650rlz/game_keeps_equipping_clubs_to_my_characters/ (and even noted in the wiki
https://bg3.wiki/wiki/Club)
Fortunately, it's NOT as game-breaking as it appears; I've encountered it twice and (eventually) managed to get the damn thing unequipped, although I don't remember exactly which method I used. But check the threads, try the stuff people mention, you can be free of that cursed piece of trash!
