If you delete the vSphere Replication appliance virtual machine, the VRMS Appliance Management Interface is not available to delete the appliance extension that still exists in vCenter Server.
Deleting the vSphere Replication appliance does not remove the vSphere Replication extension from vCenter Server.
- Use the Managed Object Browser (MOB) to delete the vSphere Replication extension manually.
- Redeploy the appliance and reconfigure the replications.
For more information, see Unregister vSphere Replication from vCenter Server if the Appliance Was Deleted.