I didn’t file my taxes last year so I do not know my AGI from 2016. I type in “0” but I still get my refund rejected. How can this be fixed?

[ChristyW]

If you get the same rejection a second time (or third, or fourth, or fifth...) and you see no mistakes on your return, select the file by mail option to paper-file your return. Sometimes, returns keep getting rejected even though there's nothing wrong with them, because you have transmitted to many times.

In these cases, we recommend paper-filing by mail rather than wasting additional time trying to "fix" something that is beyond your control.

For more on rejects see: https://ttlc.intuit.com/replies/3302275