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/2add4b48403bb8f041c30793d905c2b78378b66b/examples/TestFFT1024
You should set ROOT_URL correctly, otherwise the web may not work correctly.
boblark