Your ROOT_URL in app.ini is https://source.parasitstudio.de:63000/ but you are visiting https://source.parasitstudio.de/wirtz/FixedPointsArduino/src/commit/bd84a2c69b081a393d898cc10e13911b9f866da1/examples/FixedPointCalculations
You should set ROOT_URL correctly, otherwise the web may not work correctly.
Pharap