League Client Bugged

I am constantly running into issues with the client where I accept going into the game but it will not load me or allow me to interact with anything at all. It just stays all black. It is extremely frustrating. I just got a loss in my series through something I had no power in. The biggest issue is I can't just send a support to riot over a loss in my series because it would pointless. I would rather take my chances with a team that might end up feeding then not being able to do anything at all. PLEASE RIOT FIX THIS CLIENT ISSUE!