Client keeps freezing

This started happening recently, maybe when arurf was introduced. My client keeps crashing at random times with random commands. This includes, clicking the 'Play' button, a lot when entering champion select screens (it will just go black until the game starts, I cant even force it to shut down with task manager), and even twice in game during the same game. I dont know if this is just because of the special game mode, but its quite annoying and has become frequent enough that its a problem (6-7 times in one afternoon). if there is something that can be cleaned up or adjusted please do so. Also yay for ARURF though