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 You should set ROOT_URL correctly, otherwise the web may not work correctly.
MicroDexed/third-party/SdFs
Holger Wirtz cb2ede50ff Added code for first checking the SD card on the audio shield and than the internal SD card. 5 years ago
..
doc Added code for first checking the SD card on the audio shield and than the internal SD card. 5 years ago
examples Added code for first checking the SD card on the audio shield and than the internal SD card. 5 years ago
extras Added code for first checking the SD card on the audio shield and than the internal SD card. 5 years ago
src Added code for first checking the SD card on the audio shield and than the internal SD card. 5 years ago
.gitattributes Added code for first checking the SD card on the audio shield and than the internal SD card. 5 years ago
.gitignore Added code for first checking the SD card on the audio shield and than the internal SD card. 5 years ago
LICENSE.md Added code for first checking the SD card on the audio shield and than the internal SD card. 5 years ago
README.md Added code for first checking the SD card on the audio shield and than the internal SD card. 5 years ago
library.properties Added code for first checking the SD card on the audio shield and than the internal SD card. 5 years ago

README.md

Warning: This library is no longer maintained.

Features in this library are now in the SdFat-beta library.

https://github.com/greiman/SdFat-beta

SdFat-beta will soon be released as SdFat V.2