Your ROOT_URL in app.ini is https://source.parasitstudio.de:63000/ but you are visiting https://source.parasitstudio.de/wirtz/MicroDexed/src/commit/51cb91525ec8487eb6de9e48339eaa0cc7190b23/third-party/ArduinoJson/examples/MsgPackParser
You should set ROOT_URL correctly, otherwise the web may not work correctly.