An ID appears to haven been set to a UID and GID of 0 same as root.

Can I use usermod -u and usermod -g to change it to something else like usermod -u 21006 cmnadm and usermod -g 100 cmnadm?

Or possibly just deleting with userdel -r cmnadm?

An application running this dedicated server is taking error as it is attempting to use cmnadm, when I believe its suppose to be using root.