@HuSoSThanks for your clarification!
I tried to start from scratch and did the following:
- created .env file (with APP_KEY= in it) in appdata/servas/
- created servas.db in appddata/servas
This leads to a error code 500.
Then I changed the settings according to your suggestion. Unfortunately I still get the error code 500.
I thought, when I set it up from scratch, that it should be possible to just swap out the servas.db file.
Sadly the app does not work out of the box anymore...