If you are using TurboTax Online, please try clearing your cache and see if that helps with the error message.
Can I print a copy of my return in TurboTax Online before I file it?
If you are using TurboTax Desktop, please make sure your program is updated. This can be done by logging into your desktop product. Select Online in the menu on the top, and then select Check for Updates.

If that does not update your program, you can also manually update your program.
How do I save my return as a PDF in TurboTax Desktop?
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