Your ROOT_URL in app.ini is https://source.parasitstudio.de:63000/ but you are visiting https://source.parasitstudio.de/wirtz/AutoConnect/src/commit/f3e6f0796ea5bfa2586e3c0c7f5f50b22ed15f7d/docs/images/ac_param_flow.svg
You should set ROOT_URL correctly, otherwise the web may not work correctly.