VM snapshots fails at 95%

Hi Guys,

I have a VM with guest Windows server 2008R2 on ESXi 5.5. I am using a Netbackup to backup these VMs. while running the backup for this VM, the backup fails and when i check in the vCenter Server, the below error observed.

An error occurred while taking a snapshot: msg.snapshot.error-QUIESCINGERROR.

An error occurred while saving the snapshot: msg.snapshot.error-QUIESCINGERROR.

Please assist at the earliest.

regards

VK