Your ROOT_URL in app.ini is https://source.parasitstudio.de:63000/ but you are visiting https://source.parasitstudio.de/wirtz/AutoConnect/src/commit/810be0f8914711c55b1b64dfca074523635eee50/mkdocs/images/BeforeAfter.svg
You should set ROOT_URL correctly, otherwise the web may not work correctly.