Champion select

While we were about to start our game, on my screen it was shown that my group was disbanded. I tried to join a game again and told me that i was already in a game. Restarted the client and pressed reconnect. My team got the first blood but as soon as i reconnected they remade. I've been pushing for gold weeks now and you put me a 20 minutes ban. Please fix that bug that disbands your group so that it never happens to me or another player again.