Ref.:
https://www.mysterydata.com/update-upgrade-to-mariadb-10-4-on-vestacp-cwp-centos-7/Go thru the steps again, make sure NOT to miss one or else it will mess everything up.
Especially Step 2. You want to follow the 2nd step labeled "For MariaDB 10.0/10.1/10.2/10.3 :", and NOT the 1st one.
I've used this guide on multiple servers, never had a problem.
If it still doesn't work. I agree with Igor, you'll have to have CWP support look at it.
CentOS 8 is a little easier, it has 10.4 by default.
You create the repo for 10.5, run dnf update and BAM that's it.