BSYR369E Invalid value. Delete Aged Backup should be Yes or No.
Explanation
An invalid value was entered in the Delete Aged Backup
field.
User response
Enter Y to have the product automatically delete
any offload files when it is removed from the IMS Recovery Expert repository.
For example, if you specify two offload generations and the third
backup is offloaded, the first (or oldest) offloaded backup would
be removed from the IMS Recovery Expert repository.
If this option is Y, then IMS Recovery Expert will
also delete the offload files from the MVS catalog.