Try entering a 0 (zero) for the 2019 AGI and e-file the return again. If the IRS also rejects this return then you will have to print and mail your tax return.
See this TurboTax support FAQ for mailing a tax return using the online editions - https://ttlc.intuit.com/community/printing/help/how-do-i-print-and-mail-my-return-in-turbotax-online...
See this TurboTax support FAQ for mailing a tax return using the TuroTax desktop editions for Windows - https://ttlc.intuit.com/community/print-and-file/help/how-do-i-print-and-mail-a-return-in-the-turbot...
