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 2019 or prior you won't be able to update or download any state program you will need. Some users may have found a workaround. For Installing 2019 and error 630 see this discussion....
https://ttlc.intuit.com/community/taxes/discussion/there-was-an-error-with-validating-your-license-c...
You can print out your return and use it to fill out the amended return by hand. Or find a local tax place. Why do you need to amend it? It is too late to get any refunds for 2019.
Form 1040X Amended return
https://www.irs.gov/pub/irs-pdf/f1040x.pdf
1040X Instructions
https://www.irs.gov/pub/irs-prior/i1040x--2024.pdf
