When the game bugged yesterday, I uninstalled it and tried re-installing it. I only later read, that everyone had the same problem on the status page https://status.leagueoflegends.com/#euw.
Anyway the status page says everything is ok now, but it still doesn't work for me. I tried flushing the DNS and I also tried using the hextech repair tool (adding the public DNS and adding a firewall exception for league of legends), but that didn't do the trick.
So what can I do now?