Fatal error: Uncaught Error: Interface "Magento\Framework\Event\ObserverInterface" not found in /home/airtimer/public_html/vendor/mageworx/module-seomarkup/Observer/RemoveOpenGraphBlockObserver.php:13 Stack trace: #0 {main} thrown in /home/airtimer/public_html/vendor/mageworx/module-seomarkup/Observer/RemoveOpenGraphBlockObserver.php on line 13