FIX BY SYMPTOM
What is your app doing wrong?
Find your symptom, get the likely causes and the fix. Every page starts with the answer. If you would rather have it fixed, each one links to the matching fixed-price service.
Symptoms
- Stuck in a login loop after sign-in?Stuck in a redirect loop after login in a Supabase, Clerk or Firebase app? Check redirect URLs, the auth callback, cookies and middleware.
- Works locally, breaks in production?App works on localhost or in the builder preview but breaks live? The 8 usual causes: env vars, hardcoded URLs, case-sensitive paths, CORS, HTTPS and more.
- Blank white screen after deploy?React or Vite app shows a blank white page after deploying to Netlify, Vercel or Cloudflare? Read the console error, then fix env vars, base path, assets.
- Environment variables missing in production?Environment variables undefined after deploy on Vercel, Netlify, Cloudflare, Replit or Supabase? Prefix rules per framework and where to set them per host.
- Signup or password reset emails not sending?Confirmation or password reset emails not arriving in a Supabase or Firebase app? Default SMTP limits, custom SMTP, SPF/DKIM and redirect links explained.
- Data not saving in your Supabase app?Supabase insert or update does nothing, returns [] or error 42501? Missing RLS policies, user_id mismatches, ignored errors and mock data explained.
- Custom domain not working?Custom domain not loading, stuck verifying or SSL pending in Lovable, Replit, Vercel or Netlify? DNS records, Cloudflare proxy, www vs apex, auth URLs.
- Stripe payment succeeded, but the user got no access?Customers pay with Stripe but your app never unlocks their account or plan? Webhooks, linking customers to users, live mode and RLS fixes.
- API key exposed in your app or GitHub repo?Found a secret API key in your frontend bundle or GitHub repo? Rotate it, move the call server-side, and know which keys are safe to be public.
- Is your AI-built app slow?Lovable, Bolt or v0 app slow to load or save? Measure first, then fix unindexed Supabase queries, slow RLS policies, request waterfalls and heavy bundles.
Get a $149 diagnosis See pricing
- 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
What if my problem is not listed?
Book the $149 diagnosis. We find the cause with read-only access, and the $149 is credited toward any paid job.
Do these pages work for any AI builder?
Yes. The causes are the same across Lovable, Bolt, Replit, Cursor, v0, Claude Code and Windsurf, because they share the same stacks.