With purchased licenses once you serialize, they become “hardware locked” to the Install Key that is generated. The install key is made up of several pieces and if they change or you need to move your Snapt license to a new server you will be locked out of the UI.
License issues will NEVER stop the load balancer or accelerator from running. They only prevent you from managing them.
Once you have moved your installation you can create a ticket or complete a support question form to have your license cleared, at which stage you can re-serialize the license. This will be done free of charge, but on a per-instance basis to prevent abuse.