$this->bbcode_second_pass_code('', '
alarm dbus-daemon[140]: dbus[140]: [system] Activation via systemd failed for unit 'dbus-org.freedesktop.Avahi.service': Unit dbus-org.freedesktop.Avahi.service failed to load: No such file or directory. See system logs and 'systemctl status dbus-org.freedesktop.Avahi.service' for details.
')
Manually create symlink solved this problem.
$this->bbcode_second_pass_code('', 'cd /usr/lib/systemd/system/
ln -s avahi-daemon.service /usr/lib/systemd/system/dbus-org.freedesktop.Avahi.service')
I found the solution on web and the post date is year 2012. I am not sure why i encounter this problem so lately.
Any idea?