Your ROOT_URL in app.ini is https://source.parasitstudio.de:63000/ but you are visiting https://source.parasitstudio.de/wirtz/MicroDexed/src/commit/6c6dfd3484b3f0e36989f85a9a34076e7bae69a0/addon/SD/24/ePian-24.syx
You should set ROOT_URL correctly, otherwise the web may not work correctly.