Can't log out

I was trying to log out so my roommate could log into his account on here but it keeps giving me an error screen. Not quite sure why as it was working perfectly fine a few hours ago.

Here is what I see when I attempt to log out: https://login.leagueoflegends.com/na/out?redirect_uri=https%3A%2F%2Fboards.na.leagueoflegends.com%2Fen%2Fc%2Fsite-feedback%2FIb2Tgru8-cant-log-out