Opencart产品页面SQL错误语法1064

Question

我有一个OpenCart 1.5.6.1网站，当我以客户身份登录时，我想看到一些产品页面，我收到此错误：

Error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'op LEFT JOIN ad_`order` o ON (op.order_id = o.order_id) WHERE o.customer_id = '3' at line 1
Error No: 1064
SELECT COUNT(*) AS total FROM ad_`order_product` op LEFT JOIN ad_`order` o ON (op.order_id = o.order_id) WHERE o.customer_id = '35' AND op.product_id = '83'AND o.order_status_id = '5' 
in /web/htdocs/www.adtecno.com/home/system/database/mysql.php on line 50

我真的找不到解决方案，有人可以帮我解决一下吗？非常感谢！