[CRASH] Loading into TT results in a critical error

I tried to load into a Twisted Treeline bot game with my friend, but never got a loading screen. I restarted the client and tried to press reconnect and got an error message with the option to save the crash dump. Not really sure what to do, I can't play any other game till that one ends to test if it's just that mode or league in general. I did play normal SR games with no issues earlier today.

EDIT: I made a custom SR game to test and it did the same error message