The issue is actually quite simple. Your INSPECT WORB is attempting to access memory that does not exist.
As Bill said, without more details we can do nothing more to help you. Little details would help like ...
- batch or online?
- is WORB in LINKAGE or WORKING-STORAGE SECTION or somewhere else?
- how is WORB defined?
The quality of the help you receive is VERY closely related to the quality of the information you provide.