On the screen Let's fix your returns and then refile, select Fix it now.
Enter your IP PIN in the field provided and select Continue.
If you're unable to find your IP PIN, select I can't find my IP PIN and call the listed IRS number. You can also select File by Mail if you can't get a new PIN.
Confirm your IP PIN and cross-check that the Identity Protection PIN on your screen matches.
Select This is my assigned IP PIN.
Then, select Continue to refile to e-file your return again.