A PHP Error was encountered

Severity: Notice

Message: Undefined variable: forum_topic_name

Filename: forum/forum_view.php

Line Number: 469

Backtrace:

File: /home/ok4new/public_html/application/views/forum/forum_view.php
Line: 469
Function: _error_handler

File: /home/ok4new/public_html/application/controllers/Forum.php
Line: 150
Function: view

File: /home/ok4new/public_html/index.php
Line: 315
Function: require_once