VM Down during Snapshot

Hi All

RHVM 4.2

While creating the snapshot of a VM , it got rebooted and not able to bring up with the below messages

Failed to run VM master3 due to a failed validation: [Cannot run VM. The VM is performing an operation on a Snapshot. Please wait for the operation to finish, and try again.] (User: admin@internal-authz).

Thansk
Sadiq