A PHP Error was encountered

Severity: Warning

Message: Use of undefined constant yes - assumed 'yes' (this will throw an Error in a future version of PHP)

Filename: controllers/Challenges.php

Line Number: 13

Backtrace:

File: /home/getquantified/public_html/application/controllers/Challenges.php
Line: 13
Function: _error_handler

File: /home/getquantified/public_html/index.php
Line: 276
Function: require_once