Can anyone see any problems with this code?

[BigIke]

This code grabs the most recent post, author blah blah... I keep getting an error message that states:

Fatal error: Call to a member function on a non-object in /homepages/24/d116946458/htdocs/vb/modules/features.php on line 24

<?php

/* Needed for use without vBA
 require_once('./global.php'); 
*/


/* ###### VARIOUS SETTINGS ###### */

$box_max_title_length=30;
$box_max_post_length=80;
$box_do_parse=0; /* Set to 1 to parse BBCODE */
$box_attachment_file="http://s116946478.onlinehome.us/vb/attachment.php?";

/* ###### GRABBING DATA ###### */

/* Only needed if you're going to be using bbcode */
if($box_do_parse==1){require_once('./includes/functions_bbcodeparse.php');}

/* Forum to Grab thread/post from */
$box_forumid_1=2;

/* Grabbing the thread */ 
$box_forumid_1thread = $DB_site->query_first("SELECT * FROM ".TABLE_PREFIX."thread
WHERE forumid = '$box_forumid_1' ORDER BY thread.dateline DESC "); 

/* Grabbing the first post */
$box_forumid_1_first_post=$DB_site->query_first("SELECT * FROM ".TABLE_PREFIX."post
WHERE threadid = '$box_forumid_1thread[threadid]' ORDER BY dateline ASC");

/* Grabbing the first attachment */
$box_forumid_1_image=$DB_site->query_first("SELECT * FROM ".TABLE_PREFIX."attachment
WHERE postid = '$box_forumid_1_first_post[postid]' ORDER BY dateline DESC");

$image1=$box_forumid_1_image['attachmentid'];

/* ###### FORMATING DATA ###### */

/* Max title length */
if(strlen($box_forumid_1thread[title])>$box_max_title_length){
$box_forumid_1thread[title]=substr($box_forumid_1thread[title], 0, $box_max_title_length);
}

/* Max post length */
if($box_forumid_1_first_post[pagetext]>$box_max_post_length){
$box_forumid_1_first_post[pagetext]=substr($box_forumid_1_first_post[pagetext], 0, $box_max_post_length);
}

/* Parse BBCODE if desired */
if($box_do_parse==1){
$box_forumid_1_first_post[pagetext]=parse_bbcode($box_forumid_1_first_post[pagetext]);
}

/* IMAGE CREATION */
$box_1_image="<img src='".$box_attachment_file."attachmentid=$img_m&stc=1' width='100' height='100' border='0'/>";

/* Template to use for data */
eval('$home[$mods[\'modid\']][\'content\'] = "' . fetch_template('adv_portal_features') . '";');

?>

This guy has been giving me some problems, any help would be appreciated