A critical error must occurred and the process mut be terminated, HELP

Hi everyone, Since the most recent patch i am getting this error randomly. https://gyazo.com/e771d47e3529e784279980214a5c1237 When this happens the screen freezes and it makes the classic "pop up" noise, i can still move my mouse and hear ppl in vocal chat. I also cant close LoL using task manager because it is "hidden" by LoL. I must reset my pc but sometimes it happens again in the same game and sometimes it doesnt allow me to rejoin the game after the reset because i keep getting this error I tried to repair but it doesnt help I know i am not the only one getting this bug, can you please help us? Thanks!
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