Deductions & credits

First, Line 30 on my 2020 return has $1200 entered.

Second, I was unable to access my 2019 return by following your instructions.  However, I did print my return last year and where line 30 is supposed to be it says, "Lines 27 through 32 are reserved for future use.  No Line 30 anywhere. 

I use standard deductions per TurboTax's suggestion.  Would that make a difference?