Fatal error: Uncaught Error: Class 'Magento\Catalog\Block\Adminhtml\Product\Edit\Button\Generic' not found in /home/esecureh/public_html/magdemo/vendor/magento/module-configurable-product/Block/Adminhtml/Product/Edit/Button/Save.php:12 Stack trace: #0 {main} thrown in /home/esecureh/public_html/magdemo/vendor/magento/module-configurable-product/Block/Adminhtml/Product/Edit/Button/Save.php on line 12