Cannot delete VM snapshot

We are facing a problem to delete snapshot for a VM and getting error as attachments. Running 5.8.5 version of OpenNebula.

“/var/tmp/one/vmm/kvm/snapshot_delete” ]; then /var/tmp/one/vmm/kvm/snapshot_delete one-626 snap-2 626 node6-dhk-cls1.bol-online.com; else exit 42; fi’
Tue Feb 18 18:31:42 2020 [Z0][VMM][E]: snapshot_delete: Command “virsh --connect qemu:///system snapshot-delete one-626 snap-2” failed: error: Domain snapshot not found: no domain snapshot with matching name ‘snap-2’
Tue Feb 18 18:31:42 2020 [Z0][VMM][E]: Could not delete snapshot snap-2 for domain one-626.
Tue Feb 18 18:31:42 2020 [Z0][VMM][E]: Error deleting VM Snapshot: Could not delete snapshot snap-2 for domain one-626.