Line 11 doesn't have the AGI

Are you referring to the 2022 Federal tax return, Form 1040 Line 11?  If there is no entry on Line 11 then when completing the 2023 tax return enter a 0 (zero) for the 2022 AGI.

See the form here

https://www.irs.gov/pub/irs-prior/f1040--2022.pdf

Please explain what you are attempting to do. Do you need last year's AGI to file?