A PHP Error was encountered

Severity: Notice

Message: Trying to get property of non-object

Filename: controllers/product.php

Line Number: 110

Database Error

A Database Error Occurred

Error Number: 1064

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 'and `hidden` = 0 order by `order_id` asc' at line 7

select `product_name`, `product_uri`, `product_summary`, `product_thumb` from `product` where `parent_id`= and `hidden` = 0 order by `order_id` asc