There can be many reasons for failed transactions the most common ones are:

Insufficient funds: If the balance of your wallet is not sufficient to cover the cost of the transaction, you will see an error message. Make sure that you have enough funds in your wallet before trying to make a transaction.

Gas price too low: Gas is a small fee that is required to be paid in order to execute a transaction on the Ethereum network. If the gas price is too low, it can take a long time for the transaction to be processed, or it might not be processed at all. Make sure to set a reasonable gas price for your transaction.

Nonce error: Nonce is a variable that is used to prevent double-spending in a blockchain. If the nonce value of your transaction is incorrect, it can result in a