critical error has occurred and process must be terminated [crash]

sometimes during loading page (right before game where its shows people loading in) League crashes and a warning pops up saying "a critical error has occurred..." normally im forced to restard my entire computer but this times managed to create some crash dumps (link) this was also the only time i was catched by leave buster, this crash has happened few times, normally league reverts and tries to fix it, this time didnt