Fatal error: Uncaught Error: Class "Magento\GiftCardAccount\Model\Total\Quote\Giftcardaccount" not found in /var/www/magento/html/app/code/BBNT/GiftCardAccount/Model/Total/Quote/Giftcardaccount.php:16 Stack trace: #0 {main} thrown in /var/www/magento/html/app/code/BBNT/GiftCardAccount/Model/Total/Quote/Giftcardaccount.php on line 16