If the birthdate on your return doesn't match the date on government records, your taxes will be rejected. It's possible the IRS may have an incorrect birthdate on file for you or others listed on the return, but the answer might also be as simple as a number that was incorrectly entered as you were completing your return.
Check the birthdates of all names on the return. Go to the MY Info Section of the return to check and re-enter the birthdates. Simply re-entering might correct the issue.
When you log into TurboTax, My Info will be listed in the banner on the left margin. Check all birthdates in there.
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