Sorry 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. They only support and update the last 3 years and put 2022 in the last years product pages and took off 2019.
Even if you install 2018 or prior you won't be able to update or download any state program you will need.
