[Client Bug] Game crashes when it's supposed to load.

I've been having a problem where the game is crashing when it should be loading, as in you go from champ selection to desktop, then after a bit hear the match start but you're still at desktop and can't find a way to pull up the game. I have to pull up the task manager, which causes the client to tell me the game has crashed, of which then no matter how much I try I cannot reconnect. I've found I've had to completely exit the client, then relaunch just to connect to the match.

This has happened multiple times in one day.