Bug Report

Everything works fine in champion select. But when its over and the loading screen should come, i just can see black screen and if i wait sometime it says Failed to connect unable to connect to the server. Please check your network connection and attempt to reconnect to your game. But when i go to google everything works fine. And i tried to repair it with that repair button in client. Didnt work. I uninstalled the game and the installed it again. Didnt work. so pls wtf i can do??