A PHP Error was encountered

Severity: Notice

Message: Undefined index: HTTP_USER_AGENT

Filename: htdocs/index.php

Line Number: 314

Backtrace:

File: /usr/home/byu7564720001/htdocs/index.php
Line: 314
Function: _error_handler

File: /usr/home/byu7564720001/htdocs/app/views/page.php
Line: 34
Function: is_mobile

File: /usr/home/byu7564720001/htdocs/app/controllers/Category.php
Line: 290
Function: view

File: /usr/home/byu7564720001/htdocs/index.php
Line: 326
Function: require_once