Your ROOT_URL in app.ini is https://source.parasitstudio.de:63000/ but you are visiting https://source.parasitstudio.de/wirtz/MicroDexed/src/commit/5fd014f017f5885c9cf56b2a820f2c404bb46868/third-party/OpenAudio_ArduinoLibrary/docs/red/ui/touch You should set ROOT_URL correctly, otherwise the web may not work correctly.