Taxes were rejected

If you are sure you entered the 2018 federal AGI as shown on line 20 of your 2018 form 2018, then the IRS apparently doesn't have your AGI in their database. Try using the number 0 instead of your AGI.

If that doesn't work, you will have to print and mail your return to get it accepted.

The IRS is currently not processing any mailed returns so it may take quite awhile for your mailed return to be processed. If you are getting a refund, you can start tracking the progress of your tax return after the IRS starts processing it by using this tracking site: 

See these Q&As for how the process works in normal times: https://www.irs.gov/refunds/tax-season-refund-frequently-asked-questions