Fatal error: Uncaught Error: Class 'Magento\Rule\Model\AbstractModel' not found in /home/esecureh/public_html/magdemo/vendor/magento/module-catalog-widget/Model/Rule.php:17 Stack trace: #0 {main} thrown in /home/esecureh/public_html/magdemo/vendor/magento/module-catalog-widget/Model/Rule.php on line 17