Your ROOT_URL in app.ini is https://git.cloudchain.link/ but you are visiting https://dash.bss.nz/open-source-mirrors/homepage/blame/commit/67a9f4983c95782fb55fe6d9a6541574c134c17b/docs/widgets/services/paperlessngx.md
You should set ROOT_URL correctly, otherwise the web may not work correctly.
Use username & password, or the token key. Information about the token can be found in the [Paperless-ngx API documentation](https://docs.paperless-ngx.com/api/#authorization). If both are provided, the token will be used.