Your ROOT_URL in app.ini is https://source.parasitstudio.de:63000/ but you are visiting https://source.parasitstudio.de/wirtz/scriptform/blame/commit/d63d68fb490e62f8879e8af23edf5afd0e1fda61/examples/simple/htaccess
You should set ROOT_URL correctly, otherwise the web may not work correctly.