When you use the Backup functionality of the VLA from the LaMa Service Dashboard page, only a few mutable files get saved. Suppose you take a backup of the VM (say VLA) using the said method. Subsequently, some of these mutable files and a few other config files happen to change. Now when you use the Restore functionality of the VLA from the LaMa Service Dashboard page, note that only the mutable files that was backed up previously will get restored. You may discover that the VLA is unable to run following the restore. You can avoid this situation by taking a backup of the VLA using snapshots. For details on using snapshots to manage a virtual machine refer to https://docs.vmware.com/en/VMware-vSphere/6.7/com.vmware.vsphere.html.hostclient.doc/GUID-CA948C69-7F58-4519-AEB1-739545EA94E5.html.