First off, was the federal tax return e-filed and accepted by the IRS? If the federal return has not been accepted you cannot e-file the state tax return.
Use this TurboTax website to check the status of an e-filed return and if it was either accepted or rejected - https://turbotax.intuit.com/tax-tools/efile-status-lookup/
If the federal return was e-filed and accepted then you can e-file the state return -
- Login to your TurboTax account.
- Select Show on your Tax Home screen, then Your tax returns and documents.
- Make sure the current tax year is highlighted, then select Add a state.
- Select the State Taxes tab.
- Select Continue to start or complete your state taxes.
- Select Done with State.
- Continue through the flow to review and file your state taxes.