User is trying to delete a BQE CORE user in the Manage Users screen (Settings > Access & Permissions) but gets an error that the user is linked with packages.
This happens because CORE does not allow you to delete users that have active subscriptions packages assigned to them. To delete the user, you need to first remove any packages assigned to the user from the Package column. Check out this article to learn more on how to remove users and subscriptions in CORE.