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I will fix next js react js node js errors bugs and website issues
Omar Taheri
About this gig
Broken build, server error, or feature that suddenly stopped working? I will find the root cause and fix it cleanly without creating new problems in your app.
I am a full-stack web developer with 5+ years of experience working with Next js, React js, Node js, Express js, JavaScript, and TypeScript across frontend, backend, and full-stack applications.
I can help you fix:
- Next js build and deployment errors
- React components, hooks, state, and rendering bugs
- Node js and Express API issues
- 500 errors, crashes, and broken routes
- Authentication, database, and integration problems
- Forms, buttons, links, and features that do not work
- Responsive layout and cross-browser issues
- Applications that work locally but fail on Vercel or production
What you will receive
- A root-cause fix, not a temporary workaround
- Clean and maintainable code
- Testing of the affected feature
- A clear explanation of what caused the problem
- A clean commit or patch that you fully own
- A walkthrough and regression check with eligible packages
Whether your application was built by you, another developer, or an AI coding platform, I will carefully investigate the issue and recommend the correct solution.
Please message
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 Omar Taheri
Omar Taheri
Full Stack AI Developer, AI SaaS, Chatbots, Web Automation, Chrome Extensions
- FromMorocco
- Member sinceJul 2026
- Avg. response time1 hour
Languages
English, Arabic, French
Hi, I’m Omar, a Full-Stack Web Developer with more than 5 years of experience creating modern and reliable digital products.
I have worked with different clients as a Web Developer and Software Architect, building everything from business websites and dashboards to SaaS platforms and custom web applications.
My main technologies include Next.js, React, Node.js, and TypeScript. I also focus on responsive design, performance, SEO, clean architecture, and building systems that are easy to maintain and scale.
Have a project in mind? Send me a message and let’s discuss how I can help.
My Portfolio
FAQ
What if the bug returns after delivery?
If the same agreed issue returns because of my delivered fix, contact me during the included support period and I will review it. Unrelated bugs, third-party changes, or new code added afterward are treated separately.
Will my live website experience downtime?
Most fixes can be prepared and tested before deployment. I will avoid making risky changes directly on your live website. When production access is necessary, I will discuss the safest deployment approach with you first.
Will you break another part of my application while fixing the bug?
I make focused changes only to the affected code and test the related user flow after the fix. I avoid unnecessary rewrites, and I can work in a separate Git branch so your current version remains safe.
Will you apply a temporary patch that breaks again later?
No quick band-aid unless you specifically request an emergency workaround. My goal is to identify the root cause and create a clean, maintainable fix that fits your existing codebase.
What happens if you cannot fix the problem?
Please contact me before ordering. I will review the error details and confirm whether the issue is within my expertise. If I cannot confidently handle it, I will tell you honestly before you place the order.
What if my project has messy, unfinished, or AI-generated code?
That is okay. I can investigate projects created by another developer or tools such as Lovable, Bolt, Replit, Cursor, and ChatGPT. The code must be accessible, and the problem should be reproducible.
Do I need to give you my passwords?
Usually not. The safest approach is to invite me as a temporary collaborator to GitHub, GitLab, Vercel, or another platform. You can remove my access immediately after the work is completed.
How do I know the bug is really fixed?
I will reproduce the issue, correct its root cause, and test the affected functionality. Depending on the package, I can also provide a written explanation, screenshots, or a video walkthrough showing the result.
