Trying to activate a new CENTRAL license returns the error
You cannot have Enterprise- and Workgroup-type licensing together.
The problem is likely due to having expired licenses. To view these, change the view from By Products to By Activation on the Manage Licenses page.
Next, select View All Activations.
You should now be able to delete the old expired license activation.
Now on the Activate Licenses page you should be able to browse to your XML activation file and activate successfully.
Winshuttle license management