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I will fix web3 dapp bugs in nextjs react nodejs and metamask
Lilly C
About this gig
Is your Web3 DApp experiencing MetaMask errors, broken API calls, failed transactions, or Next.js bugs?
I help debug, fix, and improve existing Web3 applications using Next.js, React, Node.js, MongoDB, Ethereum, and ethers.js.
Whether you're running a crypto crowdfunding platform, wallet-connected website, or blockchain DApp, I can help identify issues and improve application reliability.
MY SERVICES INCLUDE:
- Web3 DApp bug fixes and debugging
- Next.js, React, and Node.js error fixes
- MetaMask wallet connection troubleshooting
- Ethereum and ethers.js integration fixes
- MongoDB and backend API debugging
- Crypto transaction and campaign flow issues
- Codebase review and code optimization
- Responsive frontend and deployment fixes
WHY CHOOSE THIS SERVICE?
I focus on understanding the root cause, making scoped code changes, testing affected workflows, and explaining the results.
Already have a deployed DApp? I can review your existing codebase and bug list before recommending the next steps.
MESSAGE ME BEFORE ORDERING with your tech stack, bug details, and deadline for a custom quote.
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Get to know Lilly C
Lilly C
Canva Designer, Instagram Carousel and Social Media Content Creator
- FromUnited States
- Member sinceOct 2026
- Avg. response time1 hour
Languages
English, French, Spanish, German, Italian, Arabic
I specialize in Canva design, Instagram carousel design, social media content creation, and branded graphics for businesses and personal brands. I create professional Instagram posts, editable Canva templates, Facebook graphics, LinkedIn carousels, promotional banners, and eye-catching social media content. My focus is on clean layouts, modern designs, brand consistency, and visuals tailored to your audience. Whether you need custom carousel posts, social media templates, or ongoing content design support, I help bring your creative ideas to life with professional, engaging designs.
My Portfolio
FAQ
Can you fix bugs in an existing Web3 DApp?
Yes. I can review an existing Web3 DApp, reproduce reported issues, and troubleshoot frontend, backend, wallet, and integration bugs within the agreed scope.
Can you fix Next.js and React errors?
Yes. I can troubleshoot Next.js build errors, React component issues, state problems, hydration errors, and broken frontend functionality.
Can you fix MetaMask wallet connection issues?
Yes. I can investigate MetaMask connection failures, network mismatches, account changes, wallet state, and ethers.js integration issues.
Do you work with Node.js APIs and MongoDB?
Yes. I can review Node.js backend routes, MongoDB queries, API responses, authentication flows, and related integration problems.
Can you fix Ethereum transaction errors?
I can investigate frontend-to-contract calls, transaction handling, network configuration, and ethers.js errors. Smart contract modifications are outside the standard scope.
Do you provide a Web3 codebase review?
Yes. I can inspect the relevant repository, review reported bugs, identify likely root causes, and provide a prioritized technical action plan.
Can you debug crypto crowdfunding DApps?
Yes. I can work on campaign creation, campaign details, wallet connection, donation flows, and backend APIs in an existing crowdfunding application.
Can you improve an existing DApp for production?
I can help with code cleanup, API reliability, error handling, testing, and deployment issues. A full security audit or production-readiness guarantee is not included.
