Trying to play a game

So I'm trying to play a game of league, and everything. Load up the client choose a champ to as, but once I reach the loading screen, the game suddenly crashes. I use other pro games that are larger than league so I'm guessing it's not my comp. And my internet is fine, but loading up the game makes it crash. I crashed a total of almost 13 times, and it simply won't let me in the game at this point.