I got solution as below:
1. Stop all Nprinting Services.
2. Take Backup of all Folder C:\Program Data\Nprinting
3. Delete Nprinting folder.
4. Restore server
5. Restart Nprinting Services
6. Copy All files from backup file in Nprinting folder and store back to the C:\Program Data\Nprinting\
7. Reload Metadata.
It work for Me.