If the License Server, WorkStation, or Enterprise Server physically crash and you cannot retain activated licenses, the licenses are lost. Activated licenses cannot be reactivated by the License Activation Server.
To regain lost licenses when no backup exits, contact the Building Operation product support. Product support performs a manual return of the lost licenses on the License Activation Server. Once the licenses are manually returned, you can reactivate them on a new License Server by using the original entitlement ID of the licenses.