Backup exec 12.5 Error

Hello 

Can someone please help me with the following error?

I have been unable to find a disscription of what is meens! 

Completed status: Failed
Final error: 0x510053 - 0x  510053 (5308499)
Final error category: Other Errors

For additional information regarding this error refer to link V-79-81-83

Cheers

Andrew