Get your taxes done using TurboTax

I am trying to get going with a new PC. The "Your TurboTax Account" page shows most of my federal and state downloads from 2018 - 2020, but many of the state downloads have no link to download. Clicking on them does nothing. Also, the list of products shows state returns for 2018 but does not show my 2018 federal return product. Meanwhile, I have transferred my tax files to the new PC for 2020 and when I try to open a prior year return it prompts me to download states- I used 2 states in 2020 and already paid for the 2nd, but as soon as I try to down load the second state it wants to charge me $45.  I also did returns for family members who used a 3rd and 4th state. I need to get those products too, and have already paid for them as well. Any help is appreciated. Thank you.