Game Select Bug

A few days ago I was able to play normal and ranked draft. Today it says "The following member(s) must own at least 20 champions to play Ranked Summoner's Rift: Lunarians".. I own 63 champions as of right now. Has anyone else experienced a bug like this or know how I can fix it? I've restarted my client already. Any help is greatly appreciated. Thanks in advance! :)