A PHP Error was encountered

Severity: Warning

Message: Undefined variable $flag

Filename: controllers/Courses.php

Line Number: 126

Backtrace:

File: G:\PleskVhosts\biotechbazar.com\skillstudies.com\application\controllers\Courses.php
Line: 126
Function: _error_handler

File: G:\PleskVhosts\biotechbazar.com\skillstudies.com\index.php
Line: 315
Function: require_once