67D

Explanation
During processing of an EVENTS macro, the system
found that the wait flag was already on in the event control block
(ECB). The flag on indicated that a previous EVENTS or WAIT macro
was already waiting for posting of the ECB.

System action
The system abnormally ends the program that issued
the EVENTS macro.

System programmer response
If the error recurs and the program
is not in error, look at the messages in the job log for more information.
Search problem reporting data bases for a fix for the problem. If
no fix exists, contact the IBM® Support
Center. Provide the program listing and the assembly listing associated
with the job.

Programmer response
Change the problem program to eliminate
a double wait on a single event. If no double wait is found, ensure
that the ECB was not incorrectly modified by the program.  Then run
the job again.

Source
Task management