Hello…
Cannot start a game on the European servers. Neither Season nor Non Season. Americas and Asia Server work.
Deleted the Battle.net folder in ProgrameData. Afer BattleNet update there was a very very very very small D3 update. But that did not fix the problem.
https://i.ibb.co/nD76hVj/D3-317002.jpg
WARNING!
There was a problem creating a game. The game servers for
your game mode may be unavailable at this time. Please
make sure you have the latest Dibalo III client by restarting
or try later. (Code 317002)
Very unpleasant timing. Wanted to destroy the Season 32 weapons…
Edit:
Stupidity needs to be punished… I forgot to delete the additional command line that I always add when I want to play on the Asian server… Of course that does neither work on the European nor the Americas one…
And the only reason Americas worked first is, that I had not closed battle.net and had not cleared the DNS cache. After that Americas - of course - AGAIN! 
- did not work.
Too bad I remembered that when the season was over and all the nice mats weapons had gone puff… Oh well… 