DB13, job failed with the error message

Hi,

We have been scheduled online & offline backup for our training system through DB13. Earlier it was working fine. now the backup's are not triggered from DB13,

the job log details:

"Step 001 started (program RSDBAJOB, variant &0000000000065, user name GOUDAM)

Variant &0000000000065 does not exist

Job cancelled

Any suggestions.

Thanks