Some OpenVZ container templates do not include rsyslog. In order to resolve, it's necessary to manually configure rsyslog and enable logging. Use the following commands at CLI:
rm /var/log/journal/*/*
rm /var/lib/rsyslog/imjournal.state
systemctl restart systemd-journald
systemctl restart rsyslog
If that does not work, try:
yum install rsyslog
systemctl enable rsyslog
systemctl start rsyslog