W-2 Missing a State and State ID

I got a W-2 from Omaha Life Insurance for short term disability when I was on maternity leave. Unfortunetly they didnt take state taxes out of it and therefore theW-2 has nothing in boxes 15 for Sate and Employer State ID Number but there is an amount in box 16. TurboTax requires that I provide data in the two boxes for 15 so what should I enter here? Or should i just not enter anything in boxes 15 and 16?

 

Thanks!