Fatal error: Uncaught Error: Class 'Magento\Config\Model\ResourceModel\Config\Data\Collection' not found in /home/esecureh/public_html/magdemo/vendor/magento/module-theme/Model/ResourceModel/Design/Config/Collection.php:17 Stack trace: #0 {main} thrown in /home/esecureh/public_html/magdemo/vendor/magento/module-theme/Model/ResourceModel/Design/Config/Collection.php on line 17