Your ROOT_URL in app.ini is https://source.parasitstudio.de:63000/ but you are visiting https://source.parasitstudio.de/wirtz/AutoConnect/src/commit/b3ef608cf5b8a3aaa6be212e1c6a1a29d836cd44/examples/mqttRSSI_FS
You should set ROOT_URL correctly, otherwise the web may not work correctly.
Hieromon Ikasamo