The Vibefixr blog
Plain-English guides to the bugs AI coding tools leave behind in Lovable, Bolt, Cursor, Replit and v0 apps: what’s going wrong, why, and what to check.
The launch checklist for apps built with Lovable, Bolt, Cursor, Replit and v0
14 checks before you launch: security, login, payments, deploy and Supabase’s Oct 30 change, each linked to the full guide.
Your app calls localhost or hits a CORS error after deploy: here’s why
Works locally, but the live app calls localhost or gets “blocked by CORS policy”. The two different causes and the short fix for each.
How much does it cost to fix a Lovable or Bolt app?
From free (fix it yourself) to agency budgets. What drives the price, sourced fall 2026 ranges, and what a fixed-price fix covers.
Google login sends users to localhost after you publish? Here’s the fix
Login works in preview, then sends users to localhost:3000 in production. The two Supabase settings to change and how to keep previews working.
Your Supabase Edge Function works locally but fails in production: why
Works on your machine, 500 or undefined after deploy? Missing secrets are the usual cause. How to check, the one-line fix, and the other suspects.
Stuck in a loop where every AI fix breaks something else? Here’s when to stop
You fix one bug and two more appear. Why the loop happens, five ways to break it yourself, and the signs it’s time for a human.
Is your Lovable app leaking user data? How to tell if your Supabase RLS is broken
Your Supabase key is public by design, so RLS is the only lock. The warning signs that your Lovable or Bolt app exposes user data, no code needed.
Your Lovable app freezes or goes blank right after login: here’s why
Login works, then the app hangs on a spinner or white screen. The usual cause in Supabase apps and how to tell if it’s yours.
Stripe says “paid”, your app says “free”: why the feature didn’t unlock
Customers pay but don’t get access? The webhook chain behind it, the 4 places it breaks, and how to see which one in Stripe.
Lovable app shows a blank white screen after deploy? Here’s why
Works in the Lovable editor, white page on Vercel or Netlify. How to read the real error and the five causes behind most cases.
Supabase returns an empty array but the table has data? It’s usually RLS
The rows are in the dashboard, but supabase-js returns [] with no error. Why Row Level Security does that and how to debug it.
Bolt.new app shows 404 when you refresh a page? Here’s why
Home page works, but refreshing /dashboard gives 'Page not found'. Why single-page apps do this and the rule that fixes it.
Supabase’s October 30 change is live: a 5-minute checklist for new tables
Since Oct 30, 2026, new Supabase tables aren’t reachable until access is granted. A 5-minute, no-code checklist to see if your app is affected.
Leaked your Supabase service_role key in a vibe-coded app? What to do now
service_role or sb_secret_ key in your frontend or repo? How to check, why it bypasses all RLS, and the order to handle it.
Stuck? Get a free scan of your app
Send us your repo and a one-line description of what’s broken. We’ll email you the top issues we find and why they matter. If you’d rather not touch it yourself, the $199 Fix covers up to 5 issues, delivered as a pull request with tests — not fixed, full refund.