Lovable app not working? How to diagnose a broken app
If a Lovable-built app suddenly stops working, the useful question is not which prompt to try next. First isolate whether the failure is in the generated frontend, authentication, database permissions, environment configuration, an external API, or deployment.
WHAT THIS USUALLY LOOKS LIKE
- The app worked before a recent change and now fails.
- Preview works but the deployed application does not.
- A feature loops, hangs, throws an error, or silently does nothing.
- Repeated AI fixes change code without resolving the original symptom.
LIKELY FAILURE AREAS
A generated-code regression
A recent change can break state, routing, imports, API calls or assumptions elsewhere in the application.
Environment drift
Preview, local and production environments can have different variables, URLs, credentials and service configuration.
Backend or permissions failure
The UI can look healthy while Supabase, an API or an authorization policy rejects the operation.
CHECK THESE FIRST
- Write down the shortest exact reproduction path.
- Check the browser console and failed Network requests.
- Compare the last known-good Git commit with the first broken version.
- Run the repository build and tests outside the builder.
- Check production environment variables and service logs.
WHAT WE NEED TO INVESTIGATE IT
- GitHub repository
- Broken deployed URL, if available
- Exact reproduction steps
- Test account only when the issue is behind login
Do not paste passwords, private API keys or other secrets into the public submission form. We request additional access only after scope review when it is actually required.
COMMON QUESTIONS
Can VibeHell fix a Lovable app?+
If the source code is available in GitHub, we can investigate it as a normal web application. Some failures also require access to the service that is failing, such as Supabase or Vercel.
Do you need my Lovable account?+
Not for many code-level repairs. We ask for additional access only when diagnosis shows it is needed.
RELATED FIX GUIDES
STOP DEBUGGING
THE PROMPT LOOP.
VibeHell investigates the actual application, confirms scope and price, then implements and verifies the repair.