Supabase Errors: Every Documented Failure and Fix
Supabase errors in AI-built apps: RLS policy violations, edge function failures, paused projects, wiped tables.
'new row violates row-level security policy' in Supabase (403 / error 42501)
The error means RLS is on but no policy allows the write. Add an INSERT policy with a WITH CHECK clause that matches the row, conf...
Moderate · 20-60 minutes'Edge Function returned a non-2xx status code' in Supabase and Lovable
Ignore the client message; it is a generic wrapper around any failure. Open Supabase dashboard > Edge Functions > your function > ...
Easy · 10-30 minutesSupabase redirects to localhost:3000 after login or email confirmation ('requested path is invalid')
Open Supabase, Authentication > URL Configuration. Set Site URL to your real production URL and add every environment (Lovable pre...
Easy · 5-15 minutes if within the 90-day windowSupabase project paused for inactivity and your live app went dead
Log into supabase.com, open the paused project, and click Restore. Within the 90-day window your data comes back intact in a few m...
Involved · 30-60 minutes with backups; without them, data may be unrecoverableAI-run migration or SQL wiped the Supabase database (tables and data gone)
Stop prompting immediately: more AI fixes can overwrite what is left or run further migrations. On a Pro plan, restore from Databa...
Moderate · 30-90 minutesSupabase Row Level Security is off: your whole database is readable with the anon key
This is an active breach risk, not a warning to snooze. Your anon key ships in the JS bundle by design; with RLS off it works like...
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