RE: CPA7025 errors

Every so often I get alerted to a few messages (about 50) that look like
this:

Msg Queue: QSYS/QSYSOPR
ID: CPA7025
Type: INQUIRY
Subtype:
Sev: 99
TimeStamp: 2022-06-21-22.16.36.770617
User: QPGMR
Job: 874613/QPGMR/QCLNSYSLOG
Program: QJODLTRC
Msg File: QSYS/QCPFMSG

Text:
Receiver QZMF1132 in QUSRSYS never fully saved. (I C)

Second Level Text:
&N Cause . . . . . : An attempt was made to delete a receiver that
was never fully saved after the receiver was detached with a CHGJRN command.
&P If this message was issued during automatic system cleanup
(through Operational Assistant options or the STRCLNUP command),
then the journal receiver QZMF1132 in library QUSRSYS was deleted.
&N Recovery . . . : If the receiver is to be deleted anyway,
enter I to continue processing, otherwise, enter C to cancel processing.
&P If this message was issued during automatic system cleanup
(through Operational Assistant options or the STRCLNUP command),
you can avoid the message by including the journal receivers in your normal backup procedures.
&N Possible choices for replying to message . . . . . . .. . . . . . . . :
&B I -- Processing is continued. &B C --Processing is terminated.

I am not journalling anything on my system. So I'm curious as to what these messages are referring to.