Fatal error: Uncaught Error: Interface "Magento\Backend\Model\UrlInterface" not found in /var/www/magento/html/generated/code/Magento/Backend/Model/UrlInterface/Proxy.php:7 Stack trace: #0 {main} thrown in /var/www/magento/html/generated/code/Magento/Backend/Model/UrlInterface/Proxy.php on line 7