@bruceless2 The PIN can be any 5 digits and does not need to be the PIN used on the 2020 tax return. The IRS is looking for the same 2020 AGI on the 2021 tax return as they have in their database. The IRS database has been known to have missing AGI's and incorrect AGI's.
If you entered the correct 2020 AGI from your 2020 federal tax return that was filed, Form 1040 Line 11, and the IRS rejected the return, then entered a 0 for the 2020 AGI and this is also being rejected your only option is to print and mail the tax return.
See this TurboTax support FAQ for how to print a tax return for mailing when using the online editions - https://ttlc.intuit.com/community/printing/help/how-do-i-print-and-mail-my-return-in-turbotax-online...
