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MetaMask Troubleshooting User Guide

If MetaMask isn't working the way you expected, there are some steps you can take on your own that often solve problems, without having to create a support ticket. If you're seeing a specific error message, you can find a list of some system-generated errors in the expandable section at the bottom of this page.

our top fixes

Other helpful tips:

  • If your problem relates to a specific transaction, check the relevant block explorer for the network you're using, such as Etherscan. Block explorers are a wealth of information and offer much greater detail regarding the where, when, what, and who of transactions.
  • Search the Community Forums and this Knowledge Base for similar problems.
  • We do not recommend resetting your wallet or resetting an account unless one of our agents advises you to.
  • Remember, MetaMask is a self-custodial wallet, which means we cannot rescue compromised wallets. We also cannot reverse transactions, as this contradicts the immutability of blockchain.
  • If you're experiencing a problem with a third-party platform, reach out to their support team first.
  • If you have a live ticket (email correspondence) with our Technical Support team, see how to check on the status of your ticket here.

Specific error messages​

Below are some error messages that may appear in MetaMask. If you see one of these errors, try the troubleshooting steps above first. Otherwise, start a conversation with our Support team at the bottom of the page.

If you contact Support, please copy and paste the full error message exactly as shown.

Specific error messages
  • Root Error: Fetch failed with status '400' for request
  • Root Error: Exception in HostFunction: Loss of precision during arithmetic conversion: (long) 0.1
  • Root Error: invalid decimal size (argument="decimals", value="0,", code=INVALID_ARGUMENT, version=bignumber/5.8.0)
  • Root Error: The address: 0x... is not imported
  • Root Error: No XChain Swaps native asset found for chainId: 0xc7
  • Root Error: No pending scan to reject.
  • Root Error: No XChain Swaps native asset found for chainId: 0xd0a
  • Root Error: Missing identity for address: "wallet:eip155:0x...".
  • Root Error: [number] while converting number to token minimal units, too many decimal places
  • Root TypeError: Cannot convert undefined value to object
  • Root TypeError: Cannot read property 'useTokenDetection' of undefined
  • Root TypeError: Cannot read property 'network' of undefined
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