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/6dd7094bc8aece292b3bc8bf73a0de1ec5b6869a/docs/scripts/functions You should set ROOT_URL correctly, otherwise the web may not work correctly.