CRASH ERROR

so im launching into a game of Urf on a Pc more than Capable of running the game as it just hits the loading screen it sends me to a new Tab saying "whoops something broke" Powered by bugsplat i sent the error report hoping that i wouldnt get banned on league and when i play then next day this crash is still happening i cant play league i cant even play cause of the Crash and the stupid timer that i wasnt AFK FOR!!! please respond cause i spent over $200 on skins and champions and seeing this is actually making me feel like shit i really need your help do i unninstall and reinstall the manuall way or what do i DO??!!!!!