I reported this yesterday. As a retired software developer, it seems like this should be an easy fix. So I thought it must be because I still have some active games in the club. There's no easy way to find (that I know of) all your current games in the club.
The button is bugged (there are a couple of other related bugs as well).
Staff are aware but this week is a company meet-up so a lot of staff are at that so it probably won't be looked at until early next week
It's no surprise, they just give alibis ...