Your ROOT_URL in app.ini is https://source.parasitstudio.de:63000/ but you are visiting https://source.parasitstudio.de/wirtz/FixedPointsArduino/commits/commit/05f8ae0c8368f167446d68c9c4912122aa995696/examples/FixedPointCalculations
You should set ROOT_URL correctly, otherwise the web may not work correctly.
Pharap