Server problems during peak time

Hello everyone,

as you might have noticed the server has currently massive issues during peak time (somewhere between 18:00 and 22:00 CEST).
Unfortunately, we were not able to locate the root cause for this issue now, so the issue will probably remain for a few days.

We apologize for this.

[Update 25.08.2019: We optimized some database queries which hopefully reduces the overall load.]