Your ROOT_URL in app.ini is https://source.parasitstudio.de:63000/ but you are visiting https://source.parasitstudio.de/wirtz/FixedPointsArduino/commit/a2660d2cecdc1d48e4ea657166ec4986377d0a78?style=unified&whitespace=ignore-eol
You should set ROOT_URL correctly, otherwise the web may not work correctly.