An uncaught Exception was encountered

Type: Error

Message: Function name must be a string

Filename: /var/www/html/site/app/modules/shopping/models/Shopping_model.php

Line Number: 161

Backtrace:

File: /var/www/html/site/app/modules/shopping/controllers/Shopping.php
Line: 233
Function: getItemForCart

File: /var/www/html/site/index.php
Line: 315
Function: require_once