I have a negative 2020 AGI (-116), rechecked many times and confirmed. Tried Federal efile multiple times, all were rejected because it is not the same as IRS record.

I tried using 2020 AGI of -116 (which is on my 2020 return) and also 0, both were rejected.
And since Federal is rejected, NY state return is also rejected. But NY state requires efile so I can't even mail in.