Your ROOT_URL in app.ini is https://git.cloudchain.link/ but you are visiting https://dash.bss.nz/open-source-mirrors/Radarr/src/commit/3a146ea667ebd678f04822d3331962490e75ad00/setup/inno/Setup.e32 You should set ROOT_URL correctly, otherwise the web may not work correctly.
Radarr/setup/inno/Setup.e32

690 KiB