Glitch/bug in league of legends

when I go into a game it kicks me out after champion select and i get leaver buster but the thing is that the LoL client turns black and always says "LeaugeOfLegends.exe has stopped responding" every time I restart it says the same thing. I gone on a lot of YouTube videos to see if any will help me but none really helped me now i cant ever play LoL can you please help me?

Ps: happens randomly