Your ROOT_URL in app.ini is https://source.parasitstudio.de:63000/ but you are visiting https://source.parasitstudio.de/wirtz/AutoConnect/src/commit/dbd3f117e416f08b29147b436697b678af32c411/examples/FileUpload
You should set ROOT_URL correctly, otherwise the web may not work correctly.
Hieromon Ikasamo