A PHP Error was encountered

Severity: Notice

Message: Trying to get property of non-object

Filename: open/reference_room_detail.php

Line Number: 28

Backtrace:

File: /home/mapo/html/application/views/open/reference_room_detail.php
Line: 28
Function: _error_handler

File: /home/mapo/html/application/controllers/Reference_room.php
Line: 64
Function: view

File: /home/mapo/html/index.php
Line: 292
Function: require_once