102

Explanation
During processing of a POST macro, the system found
an incorrect address for an event control block (ECB).
Register
15 contains a hexadecimal reason code that explains the error: Code
Explanation
00
Incorrect ECB and the linkage from the caller is through an SVC
instruction (LINKAGE=SVC).
04
Incorrect ECB for a cross memory POST (XMPOST) macro.
08
The problem program passed an incorrect ECB address.
10
An ECB address of 0 was specified.
14
Incorrect ECB address passed by an authorized caller of POST via
LINKAGE=SYSTEM.

System action
The system abnormally ends the program that issued
the POST 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 for the job.

Programmer response
Ensure that the specified ECB address is
a valid virtual storage address and that the address was not incorrectly
modified.  Also, ensure that the program issuing the POST macro has
a storage protection key that allows it to update the ECB.  Correct
the error.  Run the job again.

Source
Task management