Your ROOT_URL in app.ini is https://source.parasitstudio.de:63000/ but you are visiting https://source.parasitstudio.de/wirtz/AutoConnect/blame/commit/b685f30af2ac7c3feacf7d71ef70aa6278b8b5c3/docs/assets/images/icons/gitlab.6dd19c00.svg
You should set ROOT_URL correctly, otherwise the web may not work correctly.
<svg xmlns= "http://www.w3.org/2000/svg" width= "500" height= "500" viewBox= "0 0 500 500" id= "__gitlab" > <path fill= "currentColor" d= "M93.667 473.347l90.684-279.097H2.983l90.684 279.097z" transform= "translate(156.198 1.16)" /> <path fill= "currentColor" d= "M221.333 473.345L130.649 194.25H3.557l217.776 279.095z" transform= "translate(28.531 1.16)" opacity= ".7" /> <path fill= "currentColor" d= "M32 195.155L4.441 279.97a18.773 18.773 0 0 0 6.821 20.99l238.514 173.29L32 195.155z" transform= "translate(.089 .256)" opacity= ".5" /> <path fill= "currentColor" d= "M2.667-84.844h127.092L75.14-252.942c-2.811-8.649-15.047-8.649-17.856 0L2.667-84.844z" transform= "translate(29.422 280.256)" /> <path fill= "currentColor" d= "M2.667 473.345L93.351 194.25h127.092L2.667 473.345z" transform= "translate(247.198 1.16)" opacity= ".7" /> <path fill= "currentColor" d= "M221.334 195.155l27.559 84.815a18.772 18.772 0 0 1-6.821 20.99L3.557 474.25l217.777-279.095z" transform= "translate(246.307 .256)" opacity= ".5" /> <path fill= "currentColor" d= "M130.667-84.844H3.575l54.618-168.098c2.811-8.649 15.047-8.649 17.856 0l54.618 168.098z" transform= "translate(336.974 280.256)" /> </svg>