Seems today’s micro patch to fix the Server didn’t work out for Wargaming EU, and now all games are affected by even further issues.
We are currently experiencing problems with our account database that are affecting all games, we apologize for the inconvenience!
— Wargaming Europe, EN (@Wargaming_netEN) May 3, 2017
I’ve been send a photo that shows the server fix:
Jokes aside, if you are experiencing any issues, Wargaming is already working on fixing the fix to fix the issue.