Your ROOT_URL in app.ini is https://source.parasitstudio.de:63000/ but you are visiting https://source.parasitstudio.de/wirtz/OpenAudio_ArduinoLibrary/commit/2541535f11344f2411a7cbaaeec6577f2d33aede?style=split&whitespace=ignore-all
You should set ROOT_URL correctly, otherwise the web may not work correctly.