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