@denverphoenix
I am running TurboTax Premier for Windows Version 021.000.0415 and only see this error if I entered a Charitable Donation in the Deductions & Credits section and only eligible for the Standard Deduction.
To remove the error I went into Forms mode and deleted the Charitable Organization Worksheet. Then on the Form 1040 Worksheet for Line 12b removed the $300 amount so Line 12b is now blank (empty).
Going back to Step-by-Step I completed the Deductions & Credits section without entering anything for a charitable donation. Continuing through the screens until landing on the screen labeled Charitable Cash Contributions under Cares Act, I entered $600. Continued through Final Review without error.
