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/d5427c8a68bb5327084bce67079d7f54472125f3/docs/scripts You should set ROOT_URL correctly, otherwise the web may not work correctly.