Deductions & credits

No matter how many of the suggested resolutions I have read on this subject, I cannot get it to work.  I keep getting the same error message.

 

I am taking the Standard Deduction, I have deleted any charitable donations that I had previously entered (totaling only $180 so I want to take the $300 that is offered).  What else can I do to get this ONE (1) error fixed so I can finish this stuff.