League Crashes upon entering a lobby sometimes (Client?)

About every 10 games I enter, (Maybe more, I don't keep count) upon entering the lobby, my league just crashes after I click accept, I don't get a bug splat error, and it still has me in the lobby (Friends have confirmed this). When I log back in, I can't start or enter a lobby until I'm forced to dodge in the other lobby (Since I don't pick a ban/champion), and I end up getting leaver buster.