Fatal error: Uncaught Error: Interface 'Magento\Framework\ObjectManager\RelationsInterface' not found in /home/esecureh/public_html/magdemo/vendor/magento/framework/ObjectManager/Relations/Runtime.php:8 Stack trace: #0 {main} thrown in /home/esecureh/public_html/magdemo/vendor/magento/framework/ObjectManager/Relations/Runtime.php on line 8