Did the IRS finish processing your 2019 return? They are taking a long time to process mailed returns so your AGI is probably not in the system yet. Try entering 0 for the AGI. If zero does not work you will have to print and mail your return.
How to mail a return from the Online version
https://ttlc.intuit.com/community/printing/help/how-do-i-print-and-mail-my-return-in-turbotax-online...
Be sure to attach copies of your W2s and any 1099s that have withholding on them. You have to mail federal and state in separate envelopes because they go to different places. Get a tracking number from the post office when you mail them for proof of filing.
