Help! Turbo tax 2021 cd version not resuming today where I left off yesterday - data seems to be lost @

I am using the TurboTax Deluxe CD version for tax year 2021.   

A week ago I spent several hours completing the Federal tax form and then TurboTax asked me if I wanted a request for extension of filing federal tax, and I said yes and I saved the PDF of the request for extension in the 2021 Returns folder. 

Today when I tried to resume the return, it wanted me to start all over again, and I was unable to resume where I left off.   The only file in the 2021 Returns folder is the request for extension to file federal tax.

 

Is there any hidden file containing the data ?

 

I will greatly appreciate help with this in recovering my data.