League In-game client isn't launching.

So when you confirm a match, choose your role and character etc, that client closes and a new in-game client is supposed to launch right? Well, it doesn't launch for me and I'm not sure why? And even if I open the original league client again, it just says a game in progress and I don't have an option to join back into the game. So anybody got a solution to this/is happening to them as well? (Blind Pick Normal)