Guide · Lovable
Fix a broken Lovable app
Updated
Short answer
A common cause of Lovable problems after launch is the difference between your editor and your live address. Publish again, open the live app in a private window, and check the redirect URLs and the database access rules. If it is still broken, a free VibeFix check tries the problem on your live app, and the fix in the code is $79, paid up front.
This page is about apps built with Lovable. The name is used only to say which tool this is about.
How a Lovable app breaks once real users arrive
Lovable says its built-in backend is "the database, login, and file storage Lovable runs for your app." So the problems below are about sign-in, email, data rules and publishing.
- Sign-up or login loops. You sign in and land back on the login page, often only on the published address or a custom domain. See Lovable login loop, Lovable sign in works in preview but not when published and Login broken after publishing.
- Emails not arriving. Lovable says new projects start at "1,000 emails per hour" for authentication emails, and that this limit is the first thing to check if confirmations stop arriving. See Email rate limit exceeded and Confirmation emails not arriving.
- Data not saving, or visible to the wrong people. Lovable explains that "Row-level security (RLS) policies control which users can access or modify data in your database." See Data won't save (row-level security) and Users can see other users' data in Lovable.
- Changes not showing, or a broken publish. Lovable says "Later changes do not reach your live app on their own." See Lovable changes not showing on the published site, Lovable app not working after publish and Blank page after publish.
- Works in preview, not live. Lovable says the preview "can differ from what visitors see on the published site." See Works in the preview but not after publishing.
- Payments. Lovable says that with a live Stripe key, "payments made from the preview are real", and that "By default, the integration does not use webhooks." If customers cannot pay, see Customers can't pay and Stripe checkout not working on the live site.
What you can try yourself first
- Publish again, then open the live address in a private window. Lovable's publish docs explain what reaches the live app.
- Check the redirect URLs. Lovable's users and authentication docs say where to add your published or custom address.
- Read the logs. Lovable's Logs record requests, database activity, sign-ins and errors, and you can paste an entry into the project chat.
- Run the security scan. Lovable says the Quick scan "runs automatically every time you publish" (security docs).
- Test as a stranger: a private window, a new email address, the live address.
How VibeFix helps
VibeFix is independent of any app builder. Our AI agent can fix a Lovable app in its code.
- Free check. "You tell us what broke. Our AI agent tries it on your live app, says whether it hit the same problem, and sends a screenshot."
- Fix. "Our AI agent finds the cause and fixes it in your code." The price is "$79, paid up front."
- Delivery and re-check. "A GitHub pull request in your own repository." After the fix is live, the AI agent goes back to your live app and repeats the check that failed, the way a customer would.
- Refund. "If we can't complete your re-check, you get your money back."
- Which apps. "Today the fix is for apps built with Lovable, or any app whose code is on GitHub."
- Never asked. "We never ask for passwords."
A check reports what the AI agent saw. It does not promise that every problem is found.
Want it fixed?
Our AI agent fixes it in your code and tests your live app again. See pricing.
It starts with a free check that confirms the problem on your live app, no account needed.
VibeFix is independent. Lovable, Bolt, Replit, Base44, v0, Supabase, Firebase, Stripe, Vercel and Google are trademarks of their owners.
Want it fixed?
Our AI agent fixes it in your code and tests your live app again. See pricing.
It starts with a free check that confirms the problem on your live app, no account needed.