Fatal error: Uncaught Error: Interface "Magento\Framework\Event\ObserverInterface" not found in /home/airtimer/public_html/vendor/yotpo/magento2-module-yotpo-reviews/Observer/OrderSaveAfter.php:10 Stack trace: #0 {main} thrown in /home/airtimer/public_html/vendor/yotpo/magento2-module-yotpo-reviews/Observer/OrderSaveAfter.php on line 10