StoreEver Tape Storage

DPX error code : 1401

Frequent Advisor

DPX error code : 1401

OS : RHEL5.5 x64 (2.6.18-194.3.1.EL5)
HP LTO-4 1/8 Autoloader SCSI
HP Single Channel Ultra320 PCI-E SC11Xe Host Bus Adapter 412911-B2
Data Protector Express 4.0 SP1

When I run a job , DPX report error code 1401.
I find a HP troubleshooting website =>

I don't have Tape Library LTO-4 Encryption Kit.

Please , Can everyone have good idea ?
Thank you ..