A PHP Error was encountered

Severity: Notice

Message: Use of undefined constant CONFSLUG - assumed 'CONFSLUG'

Filename: controllers/Speaker.php

Line Number: 17

Backtrace:

File: /var/www/meetingsint/application/controllers/Speaker.php
Line: 17
Function: _error_handler

File: /var/www/meetingsint/index.php
Line: 317
Function: require_once