Fatal error: Uncaught Error: Class 'Magento\Catalog\Model\Product' not found in /var/www/vhosts/theholdingcompany.co.uk/htdocs/vendor/magento/module-catalog/Model/ResourceModel/Product/Attribute/Collection.php:68 Stack trace: #0 /var/www/vhosts/theholdingcompany.co.uk/htdocs/vendor/magento/framework/Model/ResourceModel/Db/Collection/AbstractCollection.php(133): Magento\Catalog\Model\ResourceModel\Product\Attribute\Collection->_initSelect() #1 /var/www/vhosts/theholdingcompany.co.uk/htdocs/vendor/magento/module-eav/Model/ResourceModel/Entity/Attribute/Collection.php(51): Magento\Framework\Model\ResourceModel\Db\Collection\AbstractCollection->__construct(Object(Magento\Framework\Data\Collection\EntityFactory), Object(WeltPixel\Backend\Model\Logger), Object(Magento\Framework\Data\Collection\Db\FetchStrategy\Query), Object(Magento\Framework\Event\Manager\Proxy), NULL, NULL) #2 /var/www/vhosts/theholdingcompany.co.uk/htdocs/vendor/magento/module-catalog/Model/ResourceModel/Product/Attribute/Collection.php(44): Magento\Eav\Mode in /var/www/vhosts/theholdingcompany.co.uk/htdocs/vendor/magento/module-catalog/Model/ResourceModel/Product/Attribute/Collection.php on line 68