After cleaning up the logs, NSMEMSTR calls the MVSPAUSE Callable Service to wait for messages. While calling MVSPAUSE, the job may abend with a CODE=0E0 REASON CODE=00000034.
The IBM Language Environment Condition Handler was set to TRAP(OFF) which prevents LE from issuing a SPIE macro to handle program interrupts. If TRAP(OFF) is used, the failure will likely occur in mvspause() if the DSA, which is allocated in the Language Environment, contains leftover data from previous routines, such as the log clean-up.
Set the LE condition handler to TRAP(ON,SPIE).
Details of the Language Environment TRAP option are available through the IBM Knowledge Center.