Your ROOT_URL in app.ini is https://source.parasitstudio.de:63000/ but you are visiting https://source.parasitstudio.de/wirtz/AutoConnect/src/commit/772bbdda8075f53be18e72dfaded88c76c5b2014/docs/assets/images/icons/gitlab.348cdb3a.svg
You should set ROOT_URL correctly, otherwise the web may not work correctly.