[Game Launch][White Dot of Death] Game will not launch following crash

Today I watched one of my games back, and when I tried to record it the game crashed and gave me a bugsplat message. I tried to play another game and, while the client worked fine, when the game window launched it only showed a black screen with a small white do in the center. This happened in any game I tried to play, and I now have a low priority queue waiting if I ever solve the problem.

I uninstalled and reinstalled. I restarted the computer several times. I installed the new mac operating system (I play on a 2015 macbook pro), restarted the computer, reinstalled league, and still I get the white dot of death. If anyone has any tips for solving this, please let me know. Thank you!