Object destroyed

I wish I had posted this question while QHST still had this message. My loss.

Early last week, a program bombed. It is an RPG III program written a LONG time
ago. This program is a NEP that reads from a data queue and prints data. First
thing the program does at startup is a call to QCMDEXC to delete the data queue.

For whatever reason, the data queue was gone when this program was started.
Since QCMDEXEC ended in error, and no error monitoring was done, the program
died.

Quick fix was to create a data queue that it could subsequently delete and
recreate.

I did look at QHST at the time, but only found the message that the data queue
object had been destroyed. Nothing near it that seemed to be related to why
the object had been destroyed.

No other odd events, as far as I know.

As I said, I wish I had looked closer at QHST before it got deleted.

This may be either a) a dumb question or b) unanswerable based on limited
information provided, but: What would typically lead to a "object destroyed"
message being sent to QSYSOPR?

Thanks.

John McKee