A PHP Error was encountered

Severity: Notice

Message: Trying to get property of non-object

Filename: site/page.php

Line Number: 4

Backtrace:

File: /var/www/html/bth/application/views/site/page.php
Line: 4
Function: _error_handler

File: /var/www/html/bth/application/libraries/Layout.php
Line: 19
Function: view

File: /var/www/html/bth/application/controllers/Site.php
Line: 49
Function: view

File: /var/www/html/bth/index.php
Line: 315
Function: require_once