This is a problem and I have tried fixing this problem and cannot find a solution.
Be sure to be using latest version of Native Access for your OS
Else then try the My Products Are Showing As DEMO in Native Access , especially '2. Your activation fails because of corrupted or missing activation tokens' and '3. You have corrupted XML files' (delete both NA XML and product XML) then restart computer and log in again to see if that helps
If this doesn't help the please contact N.I. Account Support or N.I. Native Access and Installation Support
In case that you need guidance contacting support : How to contact NI Support and How to get in touch with our Customer Care