A PHP Error was encountered

Severity: Notice

Message: Trying to get property 'category2_id' of non-object

Filename: controllers/Result.php

Line Number: 76

Backtrace:

File: /home/d0kgcchnkivb/public_html/application/controllers/Result.php
Line: 76
Function: _error_handler

File: /home/d0kgcchnkivb/public_html/index.php
Line: 315
Function: require_once