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I will fix react nextjs and mern bugs and errors
Muzamil Shiraz
About this gig
Is your React, Next.js, or MERN website broken, throwing errors, or not working as expected?
I will diagnose and fix bugs in your existing web application and make sure the affected functionality works correctly.
I can help with:
️️React and Next.js bugs
JavaScript errors
MERN stack issues
API and backend problems
Authentication issues
Responsive/mobile bugs
B️r️oken buttons, forms, pages and components
Database-related issues
Deployment and functionality errors
My process is simple:
- Understand the problem
- Reproduce and diagnose the issue
- Find the root cause
- Implement the fix
- Test the affected functionality
I work with modern JavaScript applications and focus on fixing the actual problem rather than simply hiding the error.
Not sure which package you need? Message me before ordering with your issue and, if possible, a screenshot or error message. I'll help you determine the right scope.
For large applications, major feature development, complete redesigns, or extensive debugging, please contact me first so I can provide a custom offer.
Let's get your application working properly again.
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 Muzamil Shiraz
Muzamil Shiraz
Full Stack Systems Architect
- FromPakistan
- Member sinceDec 2025
Languages
English
I am a High-Impact Frontend Engineer and UI/UX enthusiast with a deep focus on building high-performance web applications. My expertise lies in the React/TypeScript ecosystem, transforming complex designs into seamless digital experiences. I bring a unique blend of global perspective and creative problem-solving.
My Portfolio
FAQ
Can you fix bugs in an existing React or Nextjs project?
Yes. I specialize in fixing issues in existing React, Next.js and MERN applications. You can provide the relevant project files or repository and explain the problem you're experiencing.
Can you fix backend and API issues?
Yes. Standard and Premium packages can include backend, API and application logic issues. The exact scope depends on the complexity of the problem.
What types of bugs can you fix?
I can help with React and Next.js errors, JavaScript bugs, broken components, API issues, authentication problems, responsive issues, database-related problems and deployment or functionality errors.
Can you fix mobile or responsive website problems?
Yes. I can troubleshoot responsive layouts and fix issues affecting mobile, tablet or desktop screens, depending on the package and scope.
What do you need from me to start?
Please provide a clear description of the problem, the affected page or feature, any error messages, and the relevant project files or repository access. Screenshots or a short screen recording are also helpful.
Can you fix my entire application if it has many bugs?
Yes, I can work on larger applications, but extensive debugging should be discussed before ordering. Send me the application details and list of issues so I can recommend the correct package or create a custom offer.
Can you add new features to my website?
Yes, I can develop new features, but substantial feature development is different from a standard bug-fixing order. Please message me first so I can review the requirements and provide the correct scope.
What if I am not sure which package I need?
No problem. Message me with the problem, screenshots or error messages if available, and a short description of your application. I can help you determine which package fits your needs before you order.
