Your state return or a state tax due? Maybe you didn't finish filing it or it Rejected. When you log into your account you should also see the status and if it was Accepted or Rejected, Started, Printed, Ready to Mail, etc. what does it say?
Then when you efile you get back 2 emails. The first email only confirms the transmission. The second email says if the IRS (or state) Accepte.d or Rejected your efile. Check back though your emails if you have them.
Or if you mailed your returns you had to mail federal and state in separate envelopes to different places. Maybe the state got mailed with your federal return.
If the state didn't get it you will have to print and mail it now.
Taxes owed cannot be paid through TurboTax. You either mail a check to the state for the taxes owed with a payment voucher. Or, if your state allows, you enter the bank routing and account number for a Direct Debit from your account on your state tax return and the State debits your account.
How did you select to pay the 2017 state taxes owed?
For a state tax due, you never noticed it didn't come out of your bank account? Turbo Tax doesn't pay it.
Your only proof of payment is your bank statement or credit card showing the payment coming out. Turbo Tax only passes your bank account number to the state for the state to take it out of your account. But most states do not let you pay by Direct Debit so you have to mail in a check or go directly to the state's website to pay. And some banks use different routing numbers for deposits and payments. Double check the number you entered with your bank.
Check the printout or PDF of your return; look for the state cover sheet with the Turbotax logo. If you owed tax, it will show the payment information and how/when you decided to pay. Read the state payment instructions carefully since most states cannot be paid from within the TT system and requires additional steps.