After champ select, client closes

Dear RIOT,

After champ select in normal, ranked or custom games. My client dissapears. When I click on the RIOT icon on the right of my screen, the client opens and says either: ''The game is still in progress'' or ''Reconnect''. When I press reconnect, the same thing is starting to happen.

I re-patched 5.18. I repaired LOL already. Updates my PC. Restarted my PC. Just nothing helped.

Kind regards,

dezyee