A PHP Error was encountered

Severity: Notice

Message: Trying to get property of non-object

Filename: controllers/Cart.php

Line Number: 633

Backtrace:

File: /home/utmjw015q6c9/public_html/twinklemulticorner.lk/application/controllers/Cart.php
Line: 633
Function: _error_handler

File: /home/utmjw015q6c9/public_html/twinklemulticorner.lk/index.php
Line: 315
Function: require_once

{"error":"Out of Stock"}