Codezwiz >> Forums >> General PHP Nuke Help >> Error message in PNphpBB2 forum, need help please... thanks

Hi, i have problems with my PNphpBB2 forum, i uploaded to postnuke, each time i pressed a topic, it has this error: "Fatal error: Call to a member function on a non-object in /home/catchers/public_html/catchers/modules/PNphpBB2/viewtopic.php on line 153"

i never modify my code, but i give you the lines in the viewtopic.php file:

148 $sql = "SELECT t.topic_id, t.topic_title, t.topic_status, t.topic_replies, t.topic_time, t.topic_type, t.topic_vote, t.topic_last_post_id, f.forum_name, f.forum_status, f.forum_id, f.auth_view, f.auth_read, f.auth_post, f.auth_reply, f.auth_edit, f.auth_delete, f.auth_sticky, f.auth_announce, f.auth_pollcreate, f.auth_vote, f.auth_attachments" . $count_sql . "
149 FROM " . TOPICS_TABLE . " t, " . FORUMS_TABLE . " f" . $join_sql_table . "
150 WHERE $join_sql
151 AND f.forum_id = t.forum_id
152 $order_sql";
153 if ( !($result = $db->sql_query($sql)) )
154 {
155 message_die(GENERAL_ERROR, "Could not obtain topic information", '', __LINE__, __FILE__, $sql);
156 }
157
158 if ( !($forum_topic_data = $db->sql_fetchrow($result)) )
159 {
160 message_die(GENERAL_MESSAGE, 'Topic_post_not_exist');
161 }
162
163 $forum_id = intval($forum_topic_data['forum_id']);
164

can anyone please help me..??
i really appreciate any kind of help.

Thanks

Am not real familiar with PN. But that error usually means that the $sql is not defined or the $db is not defined.