System firewall

I’d like to enable firewalld on my freebpx14. For some reason the firewalld got turned off (stopped) after the system is started. The default firewall was not enabled during the installation.

Does Freepbx use a separate file to control start/stop of daemons? I’ve configured the firewalld (daemon) to start automatically at boot. Something else stops the daemon after the system has started. Can someone please help?