A PHP Error was encountered

Severity: Notice

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

Filename: frontend/category.php

Line Number: 49

Backtrace:

File: /home9/mirsaraitimes/public_html/application/views/frontend/category.php
Line: 49
Function: _error_handler

File: /home9/mirsaraitimes/public_html/application/controllers/Mainframe_front.php
Line: 142
Function: view

File: /home9/mirsaraitimes/public_html/index.php
Line: 315
Function: require_once