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I will fix your nextjs and react bugs and API errors
M Umer
About this gig
Is your React or Nextjs app broken?
API not working? White screen? Forms not submitting?
I fix these issues fast so your app works properly again.
I specialize in debugging React and Nextjs apps, finding the root cause and fixing it properly not temporary patches.
Common Issues I Fix:
Functionality and Logic
- API not fetching data
- Forms buttons or events not working
- useEffect loops and state issues
- App crashes or white screen
Nextjs Errors
- Hydration errors
- Vercel deployment failures
- App router and server issues
UI and Responsiveness
- Tailwind CSS not applying
- Broken layouts on mobile
- Alignment and responsiveness issues
Why Choose Me
- Fast debugging and clean fixes
- Full stack understanding
- Reliable communication
I dont just fix bugs I make sure your app is stable clean and working properly
Message me before ordering and lets fix your issue today
Respect third-party rights
Please be aware that it is against Fiverr's policies for sellers to include themes, templates, or any other elements that infringe third-party rights or applicable laws in the delivered work. Read more about in our Guide to Responsible Digital Creation.
Get to know M Umer
M Umer
Full Stack Software Engineer and AI Developer
- FromPakistan
- Member sinceMar 2023
- Avg. response time1 hour
Languages
Urdu, English, Punjabi
I'm Muhammad Umer, a Full Stack Software Engineer specializing in scalable web applications and AI-powered solutions. I build production-ready applications using Next.js, React, Node.js, MongoDB, AWS, and modern backend architectures. From REST APIs, authentication, and payment integrations to AI/RAG systems, I focus on clean architecture, performance, security, and maintainable code. Whether you need a complete product, backend development, bug fixes, or AI integration, I deliver reliable solutions that are built to scale.
My Portfolio
FAQ
Do you work with both the new Next.js App Router and the older Pages Router?
I am fully experienced with the modern Next.js 13/14 App Router, Server Components, and the traditional Pages Router. I can fix bugs in either version.
What do you need from me to get started?
Ideally, you will invite me to your GitHub repository so I can test the code on my local machine. If that is not possible, I can work via TeamViewer or AnyDesk, or you can send a Zip file of the code.
Can you fix bugs on a live site (Vercel/Netlify)?
Absolutely. I am an expert in debugging deployment errors that happen on Vercel, Netlify, or standard hosting, even if the app works fine on your local computer.
What happens if you cannot fix my bug?
If I cannot solve your issue, I will cancel the order instantly and you will not be charged a single penny. It is 100% Risk-Free for you.
Do you also fix design issues (CSS / Tailwind)?
Yes. I am very strong in Tailwind CSS and standard CSS. I can fix alignment issues, mobile responsiveness, or layout glitches to match your design perfectly.
