BUGSPLAT ERROR

few days ago i decided to play some League and when i went in champ select my game crashed and i got Bugsplat error.Many people told me to try to reinstall the game and i started doing it.And i started to patch it.The 1st patch was around 4-5% and then it gave me bugsplat again and i cant event patch the game and cant play. P.S Please if some1 can help me fix it it would be great please (;_; )