See this TurboTax support FAQ for changing the 2021 AGI you entered - https://ttlc.intuit.com/turbotax-support/en-us/help-article/tax-return/correct-2020-agi-turbotax-onl...
If the IRS continues to reject the 2021 AGI then enter a 0 (zero) for the 2021 AGI and e-file the 2022 tax return again.
