Hi,Check this thread to see if it's useful to you:
SOLVED - Service failures after upgrading system to CentOS version 7.6
This is the content of /etc/selinux/config
# This file controls the state of SELinux on the system.
# SELINUX= can take one of these three values:
# enforcing - SELinux security policy is enforced.
# permissive - SELinux prints warnings instead of enforcing.
# disabled - No SELinux policy is loaded.
# SELINUXTYPE= can take one of three two values:
# targeted - Targeted processes are protected,
# minimum - Modification of targeted policy. Only selected processes are pr$
# mls - Multi Level Security protection.
The version of centos is: CentOS Linux release 7.6.1810 (Core)
From what I understand of the post the problem is in the actualization of the centos itself, is it possible from cpanel to deactivate centos updates?