We are running the following version of Compliance monitor:  

Version: 3.23 Build: 20160608 - 1935

OS:  V7R3
The problem  just started happening about 5 days ago.   

The job is running in PTWRKMGT subsystem.  Based on information I found online from HelpSystems and IBM
I have already checked the subsystem description.
Max jobs in subsystem = *nomax

I have dumped and rerun the CL that starts the monitor, and then it executes fine.
Attached are the job logs and subsystem description