How to Unstuck Stuck Transactions on MetaMask？
How to "unstick" any pending transactions that are stuck in your MetaMask
If your transaction is stuck on pending in Metamask, and the “Cancel” button isn’t helping, you might need to use this method to clear your backlog.
1.open you MetaMask-Setting
2.find Advanced - Reset Account
3.Click "Reset" and restart your transaction
Then the pop-up window will show “Resetting your account will clear your transaction history. This will not change the balances in your accounts or require you to re-enter your Secret Recovery Phrase.
Just click “Reset” and then you can restart your transaction.