I just made a copy of an existing board "Database Team", because I wanted to play with something, but the "Copy of Database Team" board that I created has been created with wrong permissions. Essentially, it has no administrator assigned, I can't delete it, and I can't configure it. I didn't expect that the copy I created won't be configurable by me. It looks like a bug to me.

I am going to create another board using "create board" now, so it is not blocking me.