Check this Entry error

Hi, 

 

I'm trying to file my taxes and right before it transmits it wants to review everything and a message pops up saying: 

 

"Check this Entry: 1040/1040SR wks: Charitable contributions: Charitable contributions has an unacceptable value"

 

It has a number listed followed by a period. If I remove the period the error still appears. The only thing that seems to work is if I completely remove the number but then my refund amount changes. How do I fix this?