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/9912cc8e9ff225139a4c537d6fe3f63244b85d6b/examples/SignalNoise_float
You should set ROOT_URL correctly, otherwise the web may not work correctly.