Or try using 0 for the AGI. If 0 doesn't work you will have to print and mail your return. Did you efile 2019? Was it Accepted?
The AGI is on 2019 1040 line 8b. If you filed a Joint return you use the same AGI for each spouse.
How to find the AGI.
https://ttlc.intuit.com/community/agi/help/how-do-i-find-last-year-s-agi/01/25947
