E23

Explanation
An error occurred during processing of a write
to operator with reply (WTOR) macro. The macro specified one of the
following incorrectly: The address of the event control block (ECB)
The address of the request block (RB) in the ECB
The address of the virtual storage area

Programmer response
Correct the macro or program errors that
incorrectly modified the macro expansion. Ensure that the ECB address
is a fullword on a fullword boundary. Recompile the program and run
the job step again.

Source
Console services