Fatal error: Uncaught Error: Class "Magento\ConfigurableProduct\Helper\Data" not found in /var/www/magento/html/app/code/MagicToolbox/MagicZoomPlus/Helper/ConfigurableData.php:12 Stack trace: #0 {main} thrown in /var/www/magento/html/app/code/MagicToolbox/MagicZoomPlus/Helper/ConfigurableData.php on line 12