Kicked by system way before time ended.

I was kicked suddenly by the system. waited 5 m. And when i got back and select the champ i wanted it SHOWED me: lock in, with the timer flashing, the warning and the sound and it was written the champ i took before being kicked....

Update. Just finished a game. And i want to stop playing for now. But can't close it. My lol isn't showing me the "do you want to close lol".