Please help, my game crashes after the champion selection screen.

Hello there, I've been experiencing game crashes when the big window pops up after the champion selection phase, it says critical error on the error window. I've tried everything including uninstalling the game. I saw a thread telling us to share these two files so I can get some feed back, please help me.[process]https://pastebin.com/Dq8kejTa [clientlogs] https://pastebin.com/YycUeAew