Fatal error: Uncaught Error: Class 'Magento\Framework\View\Element\AbstractBlock' not found in /home/esecureh/public_html/magdemo/vendor/magento/module-catalog/Block/Rss/Category.php:19 Stack trace: #0 {main} thrown in /home/esecureh/public_html/magdemo/vendor/magento/module-catalog/Block/Rss/Category.php on line 19