Fatal error: Uncaught Error: Class 'Magento\ProductAlert\Block\Email\AbstractEmail' not found in /home/esecureh/public_html/magdemo/vendor/magento/module-product-alert/Block/Email/Stock.php:13 Stack trace: #0 {main} thrown in /home/esecureh/public_html/magdemo/vendor/magento/module-product-alert/Block/Email/Stock.php on line 13