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/6a5d40a4595c608bf6576947e05a722acdf946dd/examples/TestTwinPeaks
You should set ROOT_URL correctly, otherwise the web may not work correctly.