[CLIENT] Unable to leave a finished game

I played a custom game to practice a champ tonight, won, and proceeded to quit my League client. When I reconnected, I was notified that I was still in a game and needed to reconnect, as if the bot game was still going on. I have closed my League client several times, so have my friends who played the custom game with me, but the message still appears. I cannot enter new games. When I attempt to reconnect, i get the error message "cannot connect to servers". Please help :D