Your AGI (adjusted gross income) is on line 11 of your 2022 Form 1040---your federal tax return form.
You received an email that we cannot see that tells you why your tax return was rejected.
Some rejected returns can be fixed and re-filed. Some have “un-fixable” reasons for the rejection and have to be mailed instead. What is the rejection code or rejection message?
If it was rejected for AGI—-your 2022 AGI might not be in the IRS system if you filed late. Try using zero instead.
If filing with zero is rejected then file again but select the option that you did not file last year. The IRS does not see that question and it will allow you to e-file with no AGI question.
https://ttlc.intuit.com/community/agi/help/where-do-i-correct-my-agi-in-turbotax-online/00/26311
If that does not work and you still cannot e-file, then print, sign, and mail your tax return.