Fatal Crash Error Season a bit of solution

After having this issue with game crash fatal error etc etc etc tried reinstall many times, and many other solutions found on riot support this link https://support.riotgames.com/hc/en-us/articles/224826367-Automated-Troubleshooting-Hextech-Repair-Tool that gave me a tool to fix league. I used and did not helped till I went to task manager closed league manually went to league fold and open this file LeagueClientUx and this one LeagueClientUxRender after that the open the game and tried again... it worked several times