Your ROOT_URL in app.ini is https://source.parasitstudio.de:63000/ but you are visiting https://source.parasitstudio.de/wirtz/scriptform/src/commit/a17906b5bade90f86f7e3b2bfab24ee4cbc658c7/contrib/debian/DEBIAN
You should set ROOT_URL correctly, otherwise the web may not work correctly.
Ferry Boender