After you file

Have you located the 2015 return, but is access locked because it was prepared in Free Edition, so it asks you to upgrade to PLUS (29.99)?    Or do you find no evidence of the 2015 return at all?

And what is the story on your current 2016 return?   Have you already filed your 2016 return with Online TurboTax, or is it still in preparation?  Or was it prepared outside of TurboTax?