Fatal error: Uncaught Error: Class 'YoastSEO_Vendor\Symfony\Component\DependencyInjection\ParameterBag\ParameterBag' not found in C:\wamp64\www\wordpress\wp-content\plugins\wordpress-seo\vendor_prefixed\symfony\dependency-injection\ParameterBag\EnvPlaceholderParameterBag.php:18 Stack trace: #0 {main} thrown in C:\wamp64\www\wordpress\wp-content\plugins\wordpress-seo\vendor_prefixed\symfony\dependency-injection\ParameterBag\EnvPlaceholderParameterBag.php on line 18