[Crash]

I can't load game. Everything working good. I can download patches, login, find a game, join champion select, but when the game start i couldn't load it. It keeped crashing over and over again. First time i sow that when i started ranked, and then i tried to check if this is one time problem or not and started aram and still couldn't join game. It is just keep crashing with the window "Game Crash" and there is written "The game has crashed. Please try to recconect to the game." I lost ranked points becouse of that.