Forgive me if this is common knowledge or an easy fix but I just installed syslog-ng 3.18.1 on CentOS 7.6.1810 and I’m seeing the following message on startup and when doing syntax checks.  It seems to be working otherwise.

[2019-04-09T18:44:57.702909] Plugin module not found in 'module-path'; module-path='//usr/lib64/syslog-ng', module='http'

Thanks,

-Mark