A PHP Error was encountered

Severity: Notice

Message: Undefined index: id

Filename: controllers/Config.php

Line Number: 303

Backtrace:

File: /var/www/html/order-cancel/application/controllers/Config.php
Line: 303
Function: _error_handler

File: /var/www/html/order-cancel/index.php
Line: 315
Function: require_once