Sorry you can no longer use Turbo Tax to prepare or amend a 2019 return. Not Online and not using the Desktop program. You need to do it yourself or go to a local tax place or accountant.
Even if you find the Desktop program, you will never be able to activate the 2019 program with the License Code. The License Code started in 2019. So 2019 needs to connect to Turbo Tax to verify the License Code. But they have stopped supporting 2019
