Tapes are not backing up

[TimLafter]

Source: Backup Exec
Category: None
Event ID: 34113
Description:
Backup ExecAlert: Job Failed
(servername)(Job: Backup Daily)
Backup Daily: The job failed with the following error: Access to a device was not authorized with this edition of Backup Exec

This just started happening, Everything was backing up just fine before. We have purchased the full version so I don't know why it starting saying that. Could this have been caused by a power issue? Is this something that I can fix?

 

[Lexluethar]

Since it is an access error eithe rthe backup media was turned off or the account it was running under didn't have proper permissions.