Backup error 8702.32

Everytime  I run the  Norton backup, I get the error message 8702.32.  I can't find anything on how to correct this error.  Help!  Thanks!!

Open Norton manage backup set

Click on summary create new backup set

Select preferences in What where and when

now select summary select the old backup set and remove the old backup set

restarted computer

now run backup to new backup set.

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Everytime  I run the  Norton backup, I get the error message 8702.32.  I can't find anything on how to correct this error.  Help!  Thanks!!