I've tried playing my first game after the last PBE maintenance, and to my surprise, I am unable to. Whenever I start up the game after champ select, I am greeted by the message quoted in the title, followed by the details in the screenshot. This happens from loading screen to a few seconds after loading in, but never past that. I restarted multiple times as it just takes a few seconds to load in for me, but I still crash after it. Weirdest part is the crash report asks me to disable any 3rd party software or overlays, except that I have none of those (no 3rd party installed, and no overlays enabled). I checked on Steam, Discord, etc..., just in case, but they are all disabled. Yet I still crash a few seconds into the game. I stopped trying to get in normal games as to not ruin the game for my team, but I would love to be able to play League.
EDIT: Tried to play anything else (not involving real players) and the issue is the same, a few seconds after loading in, game crashes with the above error message.