There are four common errors you might encounter with failed transactions. You can view your transaction on Etherscan and check the Status row to see why the transaction failed.

• Reverted: This is the most common error when purchasing an NFT. It refers to the loss of the transaction (gas) fee, not the value of the item. This can happen if multiple users are attempting to purchase the same item at the same time, and the person who paid the most gas will get to buy the item.
• Dropped and Replaced: This means the transaction was dropped and replaced by a new one. For more information, refer to the Etherscan help article.
• Out of gas: This occurs when the gas limit of your transaction was set too low. Default gas limit settings for transactions are automatically calibrated on crypto wallets like MetaMask. Changing these gas limit settings may increase the chances of a successful transaction. It's important to check websites like ETH Gas Station before confirming a transaction.
• Pending: Sometimes Ethereum transactions can get stuck in a "pending" state when the transaction has been submitted with a low gas price. To fix this error, refer to MetaMask's guide.