State tax filing

I think I'm using the wrong software.  Can you please send me a link to purchase 2020 Turbo Tax for the Desktop?  I've been using Turbo Tax Online for the past several years but this year I waited to late and it rolled over to 2021.  I have Turbo Tax Amend but this is not an amended return.  I'm hoping the software is the problem.  

 

Thanks,

Maggie