All DNSonly logs disappeared?

Hi. One of my DNS Only servers started to send my email notifications with the subject: [hostname] RECOVERED ?: cphulkd And int the Log Messages section it says: The system could not provide log messages for "cphulkd" because it failed to read all of the potential log files with the following errors: Error while attempting to open "/var/log/secure": "No such file or directory", Error while attempting to open "/var/log/messages": "No such file or directory", Error while attempting to open "/var/log/maillog": "No such file or directory" And in /var/log there are not several files like cron, maillog, messages, secure, named, spooler and more. I checked free disk space and I have 3.8GB available. Rebooted and nothing new happens. Can you guide me to resolve this, please?