Do you know why you got the error message:
CAS9216E - Invalid command - Invalid release 69 or bad variable
when you set CICSPAWN(64,69) in your ENFPARM?
Here are the explanation:
In fact, there is NO CICSPAWN support for CTS 5.2, so you cannot specify CICSPAWN(69).
So you have to remove it from your ENFPARM:
CA-ENF/CICS SPAWN CONTROL OPTIONS
*
MODE(CICSPAWN,ON)
CICSPAWN(64) <===
To take this change into account, you just have to stop ENF (P ENF)
and restart it ( S ENF,,,REINIT)