What errors are you getting with the 2021 program? Can you open your .tax2021 file? After you get the program reinstalled the first thing to do before you open your tax return is to update the program and install any state programs you had. Then open your file. So you first might need to start a fake return to be able to download the state program (go to FILE - NEW). Enter some basic information, then go to the state tab and download the state program. Then try to open your existing return, go to FILE - OPEN
And you can not transfer 2020 into 2022. You can only transfer from the prior year. You didn't actually say, but do you have the .tax2020 and .tax2021 files? What is missing from your pdf files that you need?
