A PHP Error was encountered

Severity: Notice

Message: Trying to get property 'id' of non-object

Filename: product/Catalog.php

Line Number: 4

Backtrace:

File: /var/www/vhosts/binhngamruou.vn/httpdocs/application/views/site/product/Catalog.php
Line: 4
Function: _error_handler

File: /var/www/vhosts/binhngamruou.vn/httpdocs/application/views/site/home/Index.php
Line: 12
Function: view

File: /var/www/vhosts/binhngamruou.vn/httpdocs/application/controllers/Product.php
Line: 81
Function: view

File: /var/www/vhosts/binhngamruou.vn/httpdocs/index.php
Line: 315
Function: require_once