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/8be31675376aec0129e20ea9883723c686a7b6ac/docs/jquery/css
You should set ROOT_URL correctly, otherwise the web may not work correctly.
Chip Audette