Another PHDVB VBA has a snapshot for this VM, backup aborted (VMware vSphere)
A snapshot created by a different PHD Virtual Backup Appliance already exists for the VM being backed up. Wait for any currently running jobs to complete then try the backup again. If you still encounter this error, try restarting the other appliance that was backing up the VM. If this does not solve the problem, the snapshot can be deleted from the VM manually using vSphere Client.