This error message can be the result of a "tax return" being filed by someone else. Did you do your own taxes for 2018 or were they prepared by someone else? If they were prepared by someone else, it is possible a blank form for 2019 . was accidently e-filed. I doubt you will be able to talk to a live person about this right now, but you might try going to the IRS website and look at your account to see if a 2019 tax return has been filed in your name. At any rate, you have until to get the return filed.
