That particular version of phpMyAdmin is designed for more modern MySQL versions. To resolve the problem, you can either upgrade your MySQL installation or downgrade your phpMyAdmin. Upgrading your MySQL is probably going to involve upgrading to CentOS 7, so you probably aren't ready to do that. Fortunately, the phpMyAdmin team currently continues to support the branch, which requires only MySQL 5 or newer and PHP or newer. So you can download (or whatever the current release is) from http:///home_page/ (where you can also see the listed requirements and anticipated end of life dates).
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