TurboTax Premier 2020 and TurboTax 2021 not finding my returns when starting TurboTax

Last week I purchased and installed TurboTax 2021 Premier, and started a tax return for 2021.  Now, today when I start TurboTax it does not find the saved file, but only allows starting a new return.  It does not show the previous return that had been started but all data is blank.  Also, when I start TurboTax 2020 that ALSO does not find the returns, but only allows starting a new return.  So right now I cannot view the return I filed for 2020 or the "What Ifs" done in TurboTax 2020 for 2021.  Neither one of those were a problem last week.  Why is everything missing (In both TT 2021 and TT 2020) and how can it be found?