How to update from trial status back to subscribed status after reinstalling

I currently have CCleaner Professional & kept getting notified Kamo was not working because I already had a VPN installed. I finally figured that out & uninstalled that old app. It instructed me to uninstall & reinstall Kamo. I installed a trial version because I didn't know another way to do it. How do I get Kamo back as part of my paid subscription?

You need to re-enter your code to activate your subscription, Menu>Settings>Activate enter your code as asked.

See: https://support.piriform.com/hc/en-us/articles/5882498485133-How-do-I-activate-Kamo-#if-you-ve-already-activated-a-trial-and-or-have-passed-the-tutorial--0-2