Fatal error: Uncaught Error: Class 'Magento\Framework\View\Element\UiComponent\DataProvider\DataProvider' not found in /home/esecureh/public_html/magdemo/vendor/magento/module-cms/Ui/Component/DataProvider.php:19 Stack trace: #0 {main} thrown in /home/esecureh/public_html/magdemo/vendor/magento/module-cms/Ui/Component/DataProvider.php on line 19