Logfiles inside LXC's

I have 4 LXC’s running with images:debian/9/amd64

They all have there own ZFS storagepool
and they all have no syslog

systemctl status syslog.socket

systemd[1]: syslog.socket: Socket service syslog.service not loaded, refusing.
systemd[1]: Failed to listen on Syslog Socket.
systemd[1]: syslog.socket: Socket service syslog.service not loaded, refusing.
systemd[1]: Failed to listen on Syslog Socket.

sudo systemctl restart syslog.socket is giving the same result