Your ROOT_URL in app.ini is https://source.parasitstudio.de:63000/ but you are visiting https://source.parasitstudio.de/wirtz/MicroDexed/commits/commit/bd37909c3d09af82ad5b73808c5160f1486a47a7/doc/manuals/MicroDexed-User_Manual/images/10_BankUpload_10.jpg You should set ROOT_URL correctly, otherwise the web may not work correctly.