Fatal error: Uncaught Error: Interface 'Magento\Framework\Indexer\IndexStructureInterface' not found in /home/esecureh/public_html/magdemo/vendor/magento/module-elasticsearch/Model/Indexer/IndexStructure.php:12 Stack trace: #0 {main} thrown in /home/esecureh/public_html/magdemo/vendor/magento/module-elasticsearch/Model/Indexer/IndexStructure.php on line 12