A PHP Error was encountered

Severity: Notice

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

Filename: controllers/Result.php

Line Number: 69

Backtrace:

File: /home/iysqwlz3svfs/public_html/application/controllers/Result.php
Line: 69
Function: _error_handler

File: /home/iysqwlz3svfs/public_html/index.php
Line: 239
Function: require_once