Fatal error: Class 'YoastSEO_Vendor\Symfony\Component\DependencyInjection\ParameterBag\ParameterBag' not found in /home/maghome/public_html/wm/wordpress/wp-content/plugins/wordpress-seo/vendor_prefixed/symfony/dependency-injection/ParameterBag/EnvPlaceholderParameterBag.php on line 18