Your ROOT_URL in app.ini is https://source.parasitstudio.de:63000/ but you are visiting https://source.parasitstudio.de/wirtz/AutoConnect/src/commit/5939c6532642b490aa408721c07661ea3d1a0ca4/examples/mqttRSSI_NA
You should set ROOT_URL correctly, otherwise the web may not work correctly.
Hieromon Ikasamo