A PHP Error was encountered

Severity: Notice

Message: Undefined index: HTTP_REFERER

Filename: action_page/enewsletter.php

Line Number: 137

Backtrace:

File: /home/commbyjohnson/public_html/application/controllers/action_page/enewsletter.php
Line: 137
Function: _error_handler

File: /home/commbyjohnson/public_html/application/controllers/Action.php
Line: 108
Function: include

File: /home/commbyjohnson/public_html/index.php
Line: 334
Function: require_once