Notice: Undefined property: stdClass::$node_comment in advanced_forum_handler_field_node_topic_icon->render()

Issue Summary

I am using Advanced Forum 7.x-2.x-dev 2012-Sep-25

Using an included view (advanced_forum_new_topics) in a panel page I am receiving the following error:

Notice: Undefined property: stdClass::$node_comment in advanced_forum_handler_field_node_topic_icon->render() (line 43 of /hermes/bosoraweb054/b823/ipg.fabledartscom/drupal/sites/all/modules/advanced_forum/includes/views/advanced_forum_handler_field_node_topic_icon.inc).

I followed the directions found here: http://drupal.org/node/1152868 step by step and completed the process. However, the error still occurs. Are there any other possible workarounds to remove this error? Thanks so much in advance to anyone for their help :)