The last response provided to you is incorrect. You must provide an accurate AGI for 2020 in order for the return to be accepted. It takes into account your drivers license issue date and expiration date and the AGI for 2020 all together in order to validate and accept the return. Placing a "0" in the AGI field will have it reject again as that number will clearly not match the 2020 AGI number. If you in fact did not file for 2020 then you can enter "0" as that will match for a null return - non-filed return for 2020. I suggest that if you did file 2020 that you find that return and input the correct AGI then proceed. The return should then be accepted. At this point, I hope that you have filed an extension or do not owe money or have a refund due - in which case it wont matter when you file. Hope this helps you.
