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/f403ffa416d4606cb2829afd93ccaf9ac1b32b71/docs/scripts You should set ROOT_URL correctly, otherwise the web may not work correctly.