Can't delete a subforum

Why can't I delete my games's subforum? The delete button just doesn't work.

Can you link the forum and indicate which subforum so the Mods can take a look? There are some things being worked on with subforums but the site owner is busy at the moment so if they can't figure it out it might be a little bit.

https://gamersplane.com/forums/12482/
Test2

I have 2 that I am unable to delete and would appreciate some help removing
https://gamersplane.com/forums/11777/
https://gamersplane.com/forums/12416/

I have this issue too. Clicking this button doesn't do anything:

I don't know why this would be so rampant. I'll delete these manually and try to figure out what's up.

Thanks Keleth :)