A PHP Error was encountered

Severity: Notice

Message: Undefined offset: 0

Filename: core/My_Controller.php

Line Number: 209

Backtrace:

File: E:\ourschools\application\core\My_Controller.php
Line: 209
Function: _error_handler

File: E:\ourschools\application\core\My_Controller.php
Line: 70
Function: forbid_refresh

File: E:\ourschools\application\controllers\Question.php
Line: 6
Function: __construct

File: E:\ourschools\m\index.php
Line: 294
Function: require_once