Cryptic Webmin/Virtualmin error

Hello, It started two days ago - I am receiving this email from my Virtualmin Pro server:


Cron root@ns1 /etc/webmin/status/monitor.pl
Error: Failed to lock file /etc/webmin/status/oldstatus after 5 minutes. Last error was :
Error

Failed to lock file /etc/webmin/status/oldstatus after 5 minutes. Last error was :
-----

How can I find out what is wrong and solve this, and most important… hrmmm… what does it mean as you can clearly see, not much info to it?

The machine is fully updated - latest updates were ntp and mod-pagespeed, restarted both httpd and ntpd:
[root@ns1 ~]# cat /etc/centos-release
CentOS release 6.7 (Final)
[root@ns1 ~]# uname -a
Linux ns1.mumu.ro 2.6.32-573.7.1.el6.x86_64 #1 SMP Tue Sep 22 22:00:00 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

Howdy,

It may just be a “stuck” lock file.

Do you see any lock files if you run this command:

ls -a /etc/webmin/status/

It’s likely just a matter of deleting any lock files, and then restarting Webmin with:

/etc/init.d/webmin restart