League client crashing.

While i was in champ select and i banned champs and stuff like that.Then i pick and then my league client froze and eventually it crashed.So i reconnect and for some reason when i reconnect im still in champ select but everything is blank...When i mean blank its blank i dont see the champs summoners or runes even masteries. Then i got back to the home client and i got a 30 min penalty with -8 lp. :(