Your ROOT_URL in app.ini is https://git.cloudchain.link/ but you are visiting https://dash.bss.nz/open-source-guides/TRaSH-Guides/src/commit/bdd7eef71423d8969dd896771729ee8fd082fe6d/Notifiarr/images/dn-sonarr-settings-webhook.png
You should set ROOT_URL correctly, otherwise the web may not work correctly.