Metamask: Most Common Bugs and Errors

MetaMask, a popular Ethereum wallet embedded in your browser, enables users to seamlessly interact with decentralized applications (dApps) and manage their personal wallets. Despite its advanced functionality and user-friendliness, users occasionally encounter bugs and errors. In this piece, we’ll delve into some of the most common issues MetaMask users face.

MetaMask Stuck on Loading or Connecting

Users often face scenarios where MetaMask gets stuck on a ‘Loading’ or ‘Connecting’ screen, creating an inability to interact with the wallet. This could be due to network congestion or a bug within the MetaMask plug-in. Quitting and restarting the browser, or uninstalling and reinstalling MetaMask, usually solve this issue. Always remember to back up your seed phrase before uninstalling.

Insufficient Gas Fee Errors

Sometimes users see an ‘Insufficient Gas Fee’ error when trying to conduct a transaction. This occurs mostly due to a sudden increase in the Ethereum network’s congestion, leading to higher gas fees than what is set in the transactions. A simple solution is to increase the gas fees to match the current rate in the network.

Transaction Failed Error

A ‘Transaction Failed’ error may occur due to the contract execution failing, or because there is not enough Ethereum in the wallet to cover the gas cost. To avoid this, check the contract for any errors or reevaluate its gas cost.

Network Error

‘Network Error’ could occur for several reasons such as network congestion, outages, or issues with the Ethereum Network. The solution is typically to resume transactions after network conditions have improved.

MetaMask Swaps Failure

MetaMask introduced a feature called MetaMask Swaps, which allows users to swap tokens directly through the wallet. However, some users have reported failures with swaps. In most cases, this is due to slippage tolerance settings, network fees, or insufficient balance.

Internal JSON RPC Error

Internal JSON RPC Error is a common error that occurs when there is an issue with the Ethereum Network itself. If this happens, users may want to wait until the problem is resolved before sending or receiving transactions. You can also try restarting your computer or reinstalling MetaMask.

Seed Phrase Loss

A rather human-error than a bug, losing the MetaMask seed phrase, a 12-word phrase used for wallet recovery, can be catastrophic lead to the permanent loss of assets. No other recovery method is available, emphasizing the importance of safe storage and confidentiality.


Using MetaMask brings the decentralized world to your fingertips, but it’s not without issues – understanding common bugs helps to troubleshoot problems effectively. Always ensure you have the latest version installed, as updates often contain patches for known bugs. If a problem persists, don’t hesitate to reach out to the MetaMask support community for practical guidance. In the world of blockchain, knowledge is power, and preparedness is key.

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