Load-in crash

So just today, I was getting on to play a game with a friend, and as I accept the match, I am thrown into the white screen (typical load-in process for a MAC, it turns black, then white, then the actual load-in screen shows up with all the people in that game) But before it makes it to the actual screen with the pictures of the people that are playing, it all stops and freezes on the white screen. I have no way of leaving this window without unplugging my computer's power and turning it back on. So I turn the computer back on and try to load-in again, and the same exact thing repeats. It freezes on the white screen and I can't go anywhere until the game ends. This happens with all game modes (including TFT and a bot-match).

I already uninstalled league and reinstalled it, and also did a repair session, neither of these things worked. I restarted my computer, refreshed the client, killed the client and got a new one, tried to repair it, I even got onto another account just to see if it was a user-related thing since my log-in with my other account got all messed up with the other attempt just for kicks and giggles. I have never had this problem before while playing this game religiously. This all started today (12/20/19) and has never happened before.

Any way I can get this solved?