Fatal error: Uncaught Error: Class "Magento\Checkout\Block\Onepage\Success" not found in /var/www/magento/html/app/code/BBNT/Checkout/Block/Onepage/Success.php:23
Stack trace:
#0 {main}
thrown in /var/www/magento/html/app/code/BBNT/Checkout/Block/Onepage/Success.php on line 23