Today there was a planned server outage from 06:45 til 07:02 GMT+2.
I've upgraded the underlying Debian system from stretch to the current stable release buster.
All systems looking good and working normally again.
If you experience any problems, please let me know :-)
PS: If your game failed to submit because of this, you should be able to load the save game and resubmit it. If not, please let me know and I will help you get your XP back!