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/de50899d1b8148f25a25472f1ef3ba3764807ae5/examples/BasicCompressor_Float
You should set ROOT_URL correctly, otherwise the web may not work correctly.