Client crashes after finding an aram lobby.

I queue up for an aram and I click yes but when everyone is ready it just kicks me off the whole client and i've already gotten a 15 minute penalty because it makes me dodge. It keeps me in the game while the client crashes so if i wait a while for the game to start i can just load in the game without knowing which champion I've gotten or changing my runes and masteries. But if I restart the client right away it just makes me dodge the lobby and gives me penatly,