Based on what you've said, the Free Edition shouldn't be the issue. There is an active article about 2018; I'll share it here. You can sure sign up to be notified for that.
Why can't I download my 2018 .tax file in TurboTax... (intuit.com)
Maybe try to contact Support about your 2017 tax data file. If it's on the servers (as it should be), they should be able to help.
*** I am NOT a tax expert. I am a seasoned TurboTax user, and volunteer to provide assistance to TT users. Nothing I post is to be considered TAX ADVICE; I bear no legal liability for responses.***
