Getting credential error when restoring a defunct server backup from a different machine.

Can some one please help? I had a machine crash and I'm trying to restore data from a backup that was created in BE 2012. I put the tape in another server running BE 2012 and inventoried and cataloged the tape. Since the original server is dead, I select restore to a different location and select a local drive on the current machine running BE 2012. Upon running the job I get a credential error. Can some one please assist?

Thanks