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/2a7bbc6be220996a6679c001b0391eadae1bc28d/docs/scripts/NewOutputs You should set ROOT_URL correctly, otherwise the web may not work correctly.