MariaDB repos does not work!

Hello,
For some time I see this msg inside my emails....

http://yum.mariadb.org/10.2/centos7-amd64/repodata/repomd.xml: [Errno 14] HTTP Error 404 - Not Found Trying other mirror.
To address this issue please refer to the below wiki article

Someone else have same problem?

I try to clean and remake cache problem still here.

Thanks in advance

Didn't see there is manual update to version 10.4... on FAQ site did it seems like works fine now....

I see there is 10.6 lts version on their site should we do upgrade to that?