PHP Warning: loadClass() has been disabled for security reasons in /PATH_TO_WORDPRESS/wp-content/plugins/wordpress-seo-premium/vendor/composer/ClassLoader52.php on line 186
Warning: php_uname() has been disabled for security reasons in /www/wp-content/plugins/wordpress-seo-premium/vendor/yoast/wp-helpscout/src/class-helpscout-beacon-identifier.php on line 61
This error is a server related error caused when your hosting configuration does not have allow your server to use the loadClass(), php_uname, or the [XYZ] function named in the error message.
Solution
Please contact your webhost or server admin and request that the function be enabled.
If they are unable to enable the function you may need to seek improvements with a different host provider.