Your ROOT_URL in app.ini is https://git.cloudchain.link/ but you are visiting https://dash.bss.nz/open-source-mirrors/Prowlarr/commits/commit/8cade435d1f3f8eb023b20c07f99ca8565afe2a2/IISExpress/custerr/en-us/403-13.htm
You should set ROOT_URL correctly, otherwise the web may not work correctly.