A PHP Error was encountered

Severity: Notice

Message: Trying to get property of non-object

Filename: controllers/Cart.php

Line Number: 872

Backtrace:

File: /home/kongdeet/domains/kongdeetourthai.com/private_html/application/controllers/Cart.php
Line: 872
Function: _error_handler

File: /home/kongdeet/domains/kongdeetourthai.com/private_html/index.php
Line: 315
Function: require_once