Why do I keep getting a error about an unacceptable number in the charitable donation box with standard deduction?

[KrisD15]

I can't give you a definitive answer, but this can help you look at the entry for line 10b.

Click Tax Tools on the left side bar

Click Tools from the drop-down

Click the "Topic Search" box on the screen

Type or scroll down to    standard deduction and exemptions

Click GO 

The next screen gives you an option to change your selection from Standard to Itemized and back. You do not need to change your selection

Scroll down to the bottom of that screen and click CONTINUE

The next screen is the Charitable Cash Contributions under Cares Act screen

IF YOU ARE CLAIMING STANDARD DEDUCTION enter the amount of cash contributions you made, up to  300

IF YOU ARE ITEMIZING DEDUCTIONS enter 0

Scroll down and click Continue

Click Continue on the next screen

The new "up to $300 above the line cash charity donation" is available for tax year 2020. This allows a Taxpayer to claim up to a $300 credit which is subtracted from income on the 1040 line 10c if the Taxpayer is claiming the Standard Deduction. (If you Itemize Deductions, all your donations will be listed on Schedule A.) 

[Lindayrn]

I am trying to transmit my federal tax but it will not let me get past the charitable contributions. I donated $714 in cash. Using the standard deduction, I should be able to claim $300. But it will not advance me no matter what I try. It shows the $714 (as itemized) and then the $300 in line 10b.

[Lindayrn]

I saw this same instruction on other "help" and it did me no good then either. But thank you.