Adobe Encore Error: Non-royalty bearing mode
Occasionally when launching Adobe Encore you will see the following error message:
"Encore will not launch in non-royalty bearing mode. The application needs to be serialized with a royalty bearing serial number."
Close all Adobe applications, make sure your computer is connected to the Internet, then restart Encore. Hopefully you'll see a message prompting you to activate the software or confirm your Creative Cloud subscription. Complete this process and see if Encore will launch correctly.
If this doesn't work, try uninstalling both Encore and Premiere Pro according to the instructions on this page (the instructions are for Premiere Pro but do the same thing for Encore as well).