I had purchased a lifetime license version; however, sometime installing the software on my new PC I got a message that the software will expire in 5 days. I then followed the procedure to get a new license key, but the key I got is for the free version and limited to 2 users. How do I get my original, lifetime license key?
This means you haven’t activated your license.
Go to Menu > Help > License and click on Activate, then paste in your Pro license key.
If you don’t have the ley, you can get it from the Lost Activation Key page.