California W2. Box 20 blank, but box 19 says "CASDI" and a dollar amount. Box 18 says 0.00

California W2.

Box 20 blank, but box 19 says "CASDI" and a dollar amount. Box 18 says 0.00. Turbo tax keeps giving me an error saying that box 20 cannot be blank.

I have called my payroll dept and they insisted that there is no locality tax in CA and that my W2 is correct.

I have checked this forum and some answers say that the CASDI should be in box 14. My box 14 is blank. 

I have had a family member show me some forum from 2018 that says I can put "CASDI" in Box 20. 

So what should I do? Move info from box 19 to box 14? Or put "CASDI" in Box 20 as the locality name?

Thank you