Hello,
our server 1 got stuck tonight when calculating the championships. The reason for this was a logical error in a file that never occurred before, because apparently a special case occurred, namely that all groups in the championships were filled exactly with human players and there were no overhangs.
We then fixed the error and imported a backup before the calculation and restarted it. If you still see the maintenance screen, simply reload the page, delete the cache or reinstall the app.
I'm sorry for the inconvenience, but unfortunately these things happen sometimes.