Vercel dashboard crashes for one project: domains API error, o.data?.find is not a function

Help
1

My Vercel dashboard is crashing for one project, but the deployed app itself works and CLI shows the project/deployments are healthy.

Plan:
Hobby

Problem area:
Vercel Dashboard

What works:

  • The deployed app URL loads

  • The direct /deployments page works

  • The direct /settings page works

  • The direct /logs page works

  • CLI project inspection works

  • CLI deployment listing works and shows recent Production/Preview deployments as Ready

  • CLI domains listing returns 0 Domains found

Framework/project settings from CLI:

  • Framework preset: Vite

  • Build command: npm run build:web

  • Install command: npm install

  • Node.js version: 24.x

Browser console error:
iso_swr: SSR fetch failed for "/api/v9/projects/[redacted-project]/domains?limit=91&teamId=[redacted-team]"

Then the dashboard crashes with:
TypeError: o.data?.find is not a function

There are also repeated Vercel dashboard API errors like:
/api/dash/toolbar/... 500
CustomFetchError: Unexpected response: text/plain

This looks like the dashboard is expecting the domains API response to contain an array/list, but it is receiving something else. The app itself is not down, and deployments are still Ready.

I can share the exact project/team details privately with Vercel staff if needed.