Failed to determine if PVC requires a GenericStorageBackup

Hi,

I have an issue while backup the NFS PVC with Kasten, below the logs from console

- cause:
    cause:
      fields:
        - name: pvcName
          value: nfs-claimattachmentdev
        - name: pvName
          value: pv-attachmentdev
        - name: storageClassName
          value: ""
        - name: namespace
          value: dfms-dev
      file: kasten.io/k10/kio/exec/phases/phase/snapshot.go:230
      function: kasten.io/k10/kio/exec/phases/phase.FetchSnapshotSession
      linenumber: 230
      message: '{"message":"Failed to determine if PVC requires a
        GenericStorageBackup","function":"kasten.io/k10/kio/exec/phases/phase.checkIfGVSEnabled","linenumber":257,"file":"kasten.io/k10/kio/exec/phases/phase/snapshot.go:257","cause":{"message":"Could
        not get
        storageclass","function":"kasten.io/k10/kio/kube.ForceGVSOnStorageClass","linenumber":21,"file":"kasten.io/k10/kio/kube/storage.go:21","fields":[{"name":"scName","value":""}],"cause":{"message":"resource
        name may not be empty"}}}'
    file: kasten.io/k10/kio/exec/phases/backup/snapshot_data_phase.go:153
    function: kasten.io/k10/kio/exec/phases/backup.(*SnapshotDataPhase).Run
    linenumber: 153
    message: Failed to fetch the snapshot session
  message: Job failed to be executed
- cause:
    cause:
      fields:
        - name: pvcName
          value: nfs-claimattachmentdev
        - name: pvName
          value: pv-attachmentdev
        - name: storageClassName
          value: ""
        - name: namespace
          value: dfms-dev
      file: kasten.io/k10/kio/exec/phases/phase/snapshot.go:230
      function: kasten.io/k10/kio/exec/phases/phase.FetchSnapshotSession
      linenumber: 230
      message: '{"message":"Failed to determine if PVC requires a
        GenericStorageBackup","function":"kasten.io/k10/kio/exec/phases/phase.checkIfGVSEnabled","linenumber":257,"file":"kasten.io/k10/kio/exec/phases/phase/snapshot.go:257","cause":{"message":"Could
        not get
        storageclass","function":"kasten.io/k10/kio/kube.ForceGVSOnStorageClass","linenumber":21,"file":"kasten.io/k10/kio/kube/storage.go:21","fields":[{"name":"scName","value":""}],"cause":{"message":"resource
        name may not be empty"}}}'
    file: kasten.io/k10/kio/exec/phases/backup/snapshot_data_phase.go:153
    function: kasten.io/k10/kio/exec/phases/backup.(*SnapshotDataPhase).Run
    linenumber: 153
    message: Failed to fetch the snapshot session
  message: Job failed to be executed
- cause:
    cause:
      fields:
        - name: pvcName
          value: nfs-claimattachmentdev
        - name: pvName
          value: pv-attachmentdev
        - name: storageClassName
          value: ""
        - name: namespace
          value: dfms-dev
      file: kasten.io/k10/kio/exec/phases/phase/snapshot.go:230
      function: kasten.io/k10/kio/exec/phases/phase.FetchSnapshotSession
      linenumber: 230
      message: '{"message":"Failed to determine if PVC requires a
        GenericStorageBackup","function":"kasten.io/k10/kio/exec/phases/phase.checkIfGVSEnabled","linenumber":257,"file":"kasten.io/k10/kio/exec/phases/phase/snapshot.go:257","cause":{"message":"Could
        not get
        storageclass","function":"kasten.io/k10/kio/kube.ForceGVSOnStorageClass","linenumber":21,"file":"kasten.io/k10/kio/kube/storage.go:21","fields":[{"name":"scName","value":""}],"cause":{"message":"resource
        name may not be empty"}}}'
    file: kasten.io/k10/kio/exec/phases/backup/snapshot_data_phase.go:153
    function: kasten.io/k10/kio/exec/phases/backup.(*SnapshotDataPhase).Run
    linenumber: 153
    message: Failed to fetch the snapshot session
  message: Job failed to be executed

Appreciate if you guys can help me to assist how to solve it.

Thank you So much!