On Mon, 2021-10-25 at 15:27 -0500, Jingyi C. Shi wrote:
The versions of the new server are: CentOS 7 Apache/2.4.51 PHP 7.4.25 mysql Ver 8.0.23 MediaWiki version 1.26.2
You seem to combine a recent PHP version with an old, insecure, and unmaintained MediaWiki version: https://www.mediawiki.org/wiki/Compatibility Please upgrade for your own safety: https://www.mediawiki.org/wiki/Manual:Upgrading
Thanks, andre