Your ROOT_URL in app.ini is https://source.parasitstudio.de:63000/ but you are visiting https://source.parasitstudio.de/wirtz/OpenAudio_ArduinoLibrary/src/commit/175c9f5b8ffdf6ae3a598f278938ba1f94b6f44c/docs/audio_f32_html
You should set ROOT_URL correctly, otherwise the web may not work correctly.
Chip Audette