Fatal error: Uncaught Error: Class 'Magento\CatalogInventory\Model\ResourceModel\Indexer\Stock\DefaultStock' not found in /home/esecureh/public_html/magdemo/vendor/magento/module-configurable-product/Model/ResourceModel/Indexer/Stock/Configurable.php:24 Stack trace: #0 {main} thrown in /home/esecureh/public_html/magdemo/vendor/magento/module-configurable-product/Model/ResourceModel/Indexer/Stock/Configurable.php on line 24