To resolve this issue if you are in TurboTax Online, clear your cookies and your cache on your computer, then close your browser and reopen. When you log back in to your TurboTax Online account you should not have any further issue with your return.  

If you are using TurboTax CD/Download version please see the following TurboTax FAQ for trouble-shooting tips:

https://ttlc.intuit.com/replies/3300294