Fatal error: Uncaught Error: Class "Magento\Tax\Block\Adminhtml\Rate\Toolbar\Add" not found in /var/www/magento/html/generated/code/Magento/Tax/Block/Adminhtml/Rate/Toolbar/Add/Interceptor.php:7 Stack trace: #0 {main} thrown in /var/www/magento/html/generated/code/Magento/Tax/Block/Adminhtml/Rate/Toolbar/Add/Interceptor.php on line 7