Fixed. yum clean all && yum reinstall python-gevent-socketio

Fixed. yum clean all && yum reinstall python-gevent

Done

Completed in both MySQL and PureFTPd now

If you're using a non-root user over SFTP, you need to add this user to www-data group.

Figured it out.

Have you installed the extension already? Try making a simple phpinfo() script and check its output to see if xml extension is available.

Unfortunately I have used Wordpress only few times, and this is actually an issue with the CMS itself (solution = install php-xml: http://wordpress.org/support/topic/plugin-import-html-pages-requires-php-xml-if-you-get-error-domdocument-not-found?replies=1)