If you have TurboTax Online you can clear your cash and delete cookies. Also, try refreshing your browser and even try using a different browser.
Here are two articles below that will show you how to clear your cache and delete cookies.
How to clear your cache - Community
How do I delete cookies? - Community
If you have TurboTax CD/Download, please check for updates within the program.
How do I update my TurboTax CD/Download software p ...