Can't Start Exim -- "Read-Only File System"

[bmcpanel]

WHM 8.5.1 cPanel 8.5.3-S3
RedHat 7.2 - WHM X v2.1.1

Noticed mail was down on my server. Tried to restart exim, and got a failed message. I then updated the config and got a message "Read-Only File System"

WTF? Anyone know what has happened. Anytime I try to do anything like install rpms, etc., I get the same message.

=======================================

`/etc/exim.conf.buildtest' -> `/etc/exim.conf'
chmod: changing permissions of `/var/log/exim_mainlog': Read-only file system
chmod: changing permissions of `/var/log/exim_mainlog.1.gz': Read-only file system
chmod: changing permissions of `/var/log/exim_mainlog.2.gz': Read-only file system
chmod: changing permissions of `/var/log/exim_mainlog.3.gz': Read-only file system
chmod: changing permissions of `/var/log/exim_mainlog.4.gz': Read-only file system
chmod: changing permissions of `/var/log/exim_paniclog': Read-only file system
chmod: changing permissions of `/var/log/exim_paniclog.1.gz': Read-only file system
chmod: changing permissions of `/var/log/exim_paniclog.2.gz': Read-only file system
chmod: changing permissions of `/var/log/exim_paniclog.3.gz': Read-only file system
chmod: changing permissions of `/var/log/exim_paniclog.4.gz': Read-only file system
chmod: changing permissions of `/var/log/exim_rejectlog': Read-only file system
chmod: changing permissions of `/var/log/exim_rejectlog.1.gz': Read-only file system
chmod: changing permissions of `/var/log/exim_rejectlog.2.gz': Read-only file system
chmod: changing permissions of `/var/log/exim_rejectlog.3.gz': Read-only file system
chmod: changing permissions of `/var/log/exim_rejectlog.4.gz': Read-only file system