A PHP Error was encountered

Severity: Notice

Message: Undefined index: id

Filename: common/header_view.php

Line Number: 51

Backtrace:

File: /home/h72723/data/www/ostvr.com/application/views/site/common/header_view.php
Line: 51
Function: _error_handler

File: /home/h72723/data/www/ostvr.com/application/libraries/Templates.php
Line: 37
Function: view

File: /home/h72723/data/www/ostvr.com/application/controllers/Main.php
Line: 241
Function: template_view

File: /home/h72723/data/www/ostvr.com/index.php
Line: 325
Function: require_once