Your ROOT_URL in app.ini is https://source.parasitstudio.de:63000/ but you are visiting https://source.parasitstudio.de/wirtz/MicroDexed/src/commit/0ed0d7cbd03ca54f2319f646c1ac90784ec23215/third-party/SdFs/examples/debug/CardBusyTest
You should set ROOT_URL correctly, otherwise the web may not work correctly.