Facing an issue while taking system state backup with ntbackup in windows 2003

Backup Status
Operation: Backup
Active backup destination: 4mm DDS
Media name: "Media created 6/13/2014 at 3:36 PM"

Volume shadow copy creation: Attempt 1.
Backup (via shadow copy) of "System State"
Backup set #1 on media #1
Backup description: "Set created 6/13/2014 at 3:36 PM"
Media name: "Media created 6/13/2014 at 3:36 PM"

Backup Type: Copy

Backup started on 6/13/2014 at 3:37 PM.
The 'Active Directory' returned 'c80003fa' from a call to 'BackupReadFile' additional data '-'
The operation was ended.
Backup completed on 6/13/2014 at 3:43 PM.
Directories: 191
Files: 3890
Bytes: 1,192,896,680
Time:  5 minutes and  43 seconds

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The operation did not successfully complete.

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