Fixes

Fixes for the exact error you're stuck on

One page per symptom builders search for when an app breaks after launch, grouped under the failure pattern it belongs to. Causes are ranked by how often our verified cases show them; every step cites official docs.

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App works locally but fails in production: config checklist

Custom domain SSL not working but the default URL loads

Site paused by your host with no code change: how to fix it

Sign-in works locally but fails in production: how to fix it

Users can't sign in: auth email in spam, blocked or never sent

Users can see other users' data: fixing RLS and access rules

Health checks pass but production is failing silently

API endpoints answer without login and secrets ship in the bundle

Environment variables missing or empty in production: fixes

Deploy succeeded but production still serves the old site

API calls hang in production: add timeouts, retries and real checks

Paid users still locked out? Webhooks, paused hosting and AI bills

My app's database is readable by anyone: how to find and fix it