2 Things (Crash&Bug)

1-st My PC crashed while playing LoL (And I was 25 mins in the game) anyway because of that I got the "leaver buster" warning although I re-joined in the next 5-6 min's or so of crashing. And I fear that if I crash again it will will ban me for no actual reason.

2-nd (Bug) I was in ranked queue , I minimised the client while waiting and without clicking on the "accept" button I was accepted in the match. But I didn't see the match screen, I could still hear the sounds of the champion bans but couldn't see the actual match select screen instead I was in the home screen of the game. So I restarted the client and got the "You left a queue" thing.