FIX BY SYMPTOM
Works locally, breaks in production?
When an app works on localhost or in the builder preview but breaks live, the cause is almost always a difference between the two environments: missing environment variables, hardcoded localhost URLs, case-sensitive file paths, CORS or cookie settings for the new origin, or a dev server that forgave errors the production build does not. Compare the environments before changing code. VibePitstop fixes these as fixed-price deploy fixes, with a human review on every fix.
The 8 differences that break apps
| Difference | Typical symptom |
|---|---|
| Env vars not set on the host | Blank page, undefined errors, failed API calls |
Hardcoded localhost URLs | API calls fail or redirect to localhost |
| Case-sensitive paths on Linux | Module not found only on the host |
| CORS allowed origins | "blocked by CORS policy" on the real domain |
| HTTP vs HTTPS | Mixed content blocked, Secure cookies missing |
| Dev server vs production build | Type or lint errors fail the build |
| Server listens on localhost | Published app never responds (Replit, containers) |
| No SPA rewrite | 404 when refreshing a page |
Reproduce production locally
# Vite (Lovable, Bolt)
npm ci && npm run build && npm run preview
# Next.js (v0, Cursor)
rm -rf .next && npm ci && npm run build && npm startIf the local production build fails the same way, the problem is in the code or config, not the host.
Want it fixed instead?
Deploy or single fix: $400–800, fixed scope, quoted after the $149 diagnosis (credited in full).
Common worries, answered
- Will you mess up my repo? No. We work from read-only access, and every fix arrives as a pull request. Nothing merges until you merge it.
- Is this just more AI? AI coding agents help prepare fixes. A human reviews every fix before it ships.
- What if it still breaks? We keep working until the written scope is done, at no extra cost. Fixed, or we keep working free until it is (within the written scope).
- What about Stripe and my secret keys? Scoped access only. We never take full keys or owner logins; your secrets stay yours.
- How is this different from asking ChatGPT? We don't stop at advice. We fix and launch against a written scope.
Get a $149 diagnosis See pricing Fix my deploy
- Fixed, or we keep working free until it is (within the written scope).
- A human reviews every fix before it ships.
- read-only access; fixes arrive as pull requests you merge
- Your $149 diagnosis is credited in full toward any paid job.
FAQ
Why does my app work in the Lovable or Bolt preview but not after deploying?
The preview injects settings your host does not have. Most often that is environment variables, auth redirect URLs or a missing SPA rewrite.
Should I just copy my .env file to the server?
Set each variable in the host's settings instead, and never expose secret keys through browser-prefixed variables.
How much does it cost to fix?
A deploy fix is $400–800 fixed, quoted after the $149 diagnosis, which is credited in full.