Random crash during loading screen unable to reconnect

As of patch 5.12 and 5.13 i have been experiencing random crashes when the loading screen loads and have not been able to reconnect to the game where i crash. and for the people who are going to ask i have a good computer and decent internet so its not that. i also have a firewall but i let league bypass it a good amount of time ago and i checked to make sure that league is still able to bypass. and it is still able to bypass the firewall. Also this does not happen every game but it is annoying.

TL;DR: my game randomly crashes in 5.12 and 5.13 and i dont know what causes it or how to fix it