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Fiverr Pro
English
$
USD
I will fix nft minting errors, metamask wallet connection and erc721 smart contracts
About this Gig
NFT minting failed? MetaMask wallet not connecting? ERC721 smart contract giving errors?
A broken mint button or failed wallet connection can disrupt your NFT launch and frustrate your users. I help NFT creators, Web3 startups, and collection owners identify and fix technical issues affecting their existing minting websites and smart contracts.
What I can help you fix:
- NFT minting errors and failed transactions
- MetaMask wallet connection problems
- ERC721 smart contract bugs
- Mint button and Web3 frontend errors
- Wrong network, RPC, and gas estimation issues
- Contract ABI and integration problems
- NFT minting website troubleshooting
- Smart contract deployment and verification issues
I work with Solidity, Ethereum-compatible networks, and supported Web3 frontend integrations.
What you can expect:
Clear issue diagnosis, carefully scoped repairs, relevant testing, and an explanation of the changes made.
Whether you're preparing an NFT launch or fixing an existing Web3 project, I'll help you identify the practical next step.
Message me before ordering, with your error details, blockchain network, and project setup so I can recommend the right package.
Keep your assets and information safe
Cryptocurrency services focus solely on developing and programming. Never share sensitive information or private keys with others.
FAQ
Can you fix my NFT minting website if the mint button is not working?
Yes. I can investigate frontend integration errors, contract calls, wallet connections, network configuration and transaction failures. Once I identify the cause, I'll explain the repair scope and suitable package.
Can you fix MetaMask wallet connection errors?
Yes. I can troubleshoot supported MetaMask connection flows, wallet detection, incorrect network settings, RPC errors and Web3 frontend integration problems.
Do you work with ERC721 and ERC1155 NFT smart contracts?
This gig primarily covers ERC721 contracts. I can assess ERC1155 issues as a custom request, depending on the contract structure and complexity.
Which blockchain networks do you support?
I focus on Ethereum and supported EVM-compatible networks, such as Polygon and Base. Please tell me your network before ordering so I can confirm compatibility.
Can you repair an already deployed NFT smart contract?
I can diagnose and assess deployed contracts. Whether a contract can be modified depends on its architecture. Immutable contracts may require redeployment, migration or frontend changes rather than direct modification.
What do you need to get started?
Please share your project URL or repository, contract address, blockchain network, the error message and steps to reproduce it. Never share your wallet seed phrase or private keys.
Will you test the fix before delivery?
Yes, applicable fixes will be tested using reproducible checks or a suitable test network. I will explain what was tested, provide relevant code changes and identify any remaining limitations.
