Your ROOT_URL in app.ini is https://git.cloudchain.link/ but you are visiting https://dash.bss.nz/open-source-mirrors/homepage/src/commit/983a6edccf573578119e4ea39a99736bbe4e1603/docs/widgets/services/pihole.md You should set ROOT_URL correctly, otherwise the web may not work correctly.
homepage/docs/widgets/services/pihole.md

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PiHole PiHole Widget Configuration

Learn more about PiHole.

As of v2022.12 PiHole requires the use of an API key if an admin password is set. Older versions do not require any authentication even if the admin uses a password.

Allowed fields: ["queries", "blocked", "blocked_percent", "gravity"].

Note: by default the "blocked" and "blocked_percent" fields are merged e.g. "1,234 (15%)" but explicitly including the "blocked_percent" field will change them to display separately.

widget:
  type: pihole
  url: http://pi.hole.or.ip
  version: 6 # required if running v6 or higher, defaults to 5
  key: yourpiholeapikey # optional

Added in v0.1.0, updated in v0.8.9