I will fix lovable app bugs, base44, bolt or replit app, supabase and deploy to vercel

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onbuyexpert
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onbuyexpert
Muhammad Usman
fix lovable app bugs, base44, bolt or replit app, supabase and deploy to vercel
Full Screen
fix lovable app bugs, base44, bolt or replit app, supabase and deploy to vercel

About this gig

Your AI-built app looked perfect in the preview, then broke: login fails, Supabase errors, Stripe does not work, or it will not deploy. I fix it.


I am a full-stack developer (React, Next.js, TypeScript, Node.js, Supabase, Stripe) who fixes and finishes apps built with Lovable, Base44, Bolt.new, Replit, v0 and Cursor, so you can launch with confidence.


What I fix:

  • Build, runtime and console errors, blank screens and broken UI
  • Supabase auth, database, row-level security (RLS), storage and edge functions
  • Stripe payments, webhooks and subscriptions
  • API and third-party integrations (OpenAI, email, CRMs)
  • Deployment to Vercel, Netlify or your own domain, environment variables
  • GitHub export, code cleanup and performance


How it works:

  1. Send me your project and describe the issues
  2. I review it and confirm what fits your package
  3. I fix, test and explain every change
  4. You get a working app and clean code


Web apps only (no native mobile apps). Message me before ordering with a short description of the problem.

  • Type

    • Bug fixes
    • API integration
    • Authentication
    • Payments & e-commerce
    • Database integration

  • Vibe coding platform

    • Lovable

  • Target device

    • Website
    • Progressive web app (PWA)

  • Database type

    • Supabase
    • Firebase (Firestore / Realtime DB)
    • MongoDB Atlas
    • PostgreSQL

Get to know Muhammad Usman

Muhammad Usman

Full Stack Developer, Lovable App Fixes, SaaS MVPs, AI Chatbots and Scraping

5.0(6)
  • FromPakistan
  • Member sinceJan 2022
  • Last delivery3 years

  • Languages

    English
If you ship half-built apps and chase devs for updates, I fix that. I'm Muhammad Usman, a Full-Stack Developer with 5+ years building SaaS platforms, e-commerce automation and AI systems. I also fix and deploy Lovable, Base44, Bolt and Replit apps. Stack: Next.js, React, Node.js, TypeScript, Python, Supabase, PostgreSQL, PHP/Laravel, OpenAI/Claude API. Portfolio: SaaS project management app with Stripe billing and WebSockets, price monitor tracking 8,000+ products across eBay/OnBuy/Amazon, AI chatbot with 78% auto-resolution rate. Clean code. Clear delivery. Message me to get started.

My Portfolio

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