Your ROOT_URL in app.ini is https://source.parasitstudio.de:63000/ but you are visiting https://source.parasitstudio.de/wirtz/MicroDexed/src/commit/fd730aedc38aa9ad57f9868367756bc30822cdd1/doc/manuals/MicroDexed-User_Manual You should set ROOT_URL correctly, otherwise the web may not work correctly.