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Why am I getting the error MetaMask - RPC Error: execution reverted Object code: -32603, message: 'execution reverted'?

Bulk Token Sender is a convenient tool used for transferring or airdropping tokens in bulk to multiple addresses. This functionality is particularly useful for projects or individuals looking to distribute tokens to a large number of wallets efficiently. However, you might encounter an error message when using MetaMask with Bulk Token Sender, particularly the "MetaMask - RPC Error: execution reverted Object code: -32603, message: 'execution reverted'."
Here is a step-by-step guide to understanding and resolving this issue:
  1. 1.
    Check Your Ethereum Balance: This error often occurs due to insufficient ETH in your wallet to cover the gas fees for the transaction. Ensure that your wallet has enough ETH to cover the gas fees.
  2. 2.
    Verify the Smart Contract: The error might be due to issues with the smart contract you're interacting with. Ensure that the smart contract address is correct and that the contract is functioning as expected.
  3. 3.
    Adjust Gas Limit and Gas Price: Sometimes, setting an inappropriate gas limit or gas price can cause the transaction to fail. Try adjusting these values. Increasing the gas limit or gas price might help, but be cautious as this increases the transaction cost.
  4. 4.
    Check for Network Congestion: High network congestion on the Ethereum blockchain can lead to failed transactions. Check the current network status. If it's congested, consider waiting and trying your transaction later.
  5. 5.
    Inspect the Token Addresses: Ensure that the addresses you're sending tokens to are correct and can accept the type of token you're sending. Sending tokens to an incompatible address can cause the transaction to revert.
  6. 6.
    Update MetaMask: Ensure your MetaMask wallet is up-to-date. An outdated version might not be compatible with the current network protocols or the Bulk Token Sender.
  7. 7.
    Contact Support: If you've tried all the above steps and still encounter the error, it might be a specific issue with Bulk Token Sender or MetaMask. Contact their support for personalized assistance.
Remember, when using tools like Bulk Token Sender, always proceed with caution, double-checking all details before confirming transactions.