ERROR administration/submissions.php on line 343 PLS HELP ME

<?php
/*---------------------------------------------------+
| PHPFusion 6 Content Management System
+----------------------------------------------------+
| Copyright © 2002 - 2006 Nick Jones
| http://www.php-fusion.co.uk/
+----------------------------------------------------+
| Released under the terms & conditions of v2 of the
| GNU General Public License. For details refer to
| the included gpl.txt file or visit http://gnu.org
+----------------------------------------------------*/
if (!defined("IN_FUSION")) { header("Location:../index.php"); exit; }

function createthumbnail($filetype, $origfile, $thumbfile, $new_w, $new_h) {
   
   global $settings;
   
   if ($filetype == 1) { $origimage = imagecreatefromgif($origfile); }
   elseif ($filetype == 2) { $origimage = imagecreatefromjpeg($origfile); }
   elseif ($filetype == 3) { $origimage = imagecreatefrompng($origfile); }
   
   $old_x = imagesx($origimage);
   $old_y = imagesy($origimage);
   
   if ($old_x > $new_w || $old_y > $new_h) {
      if ($old_x < $old_y) {
         $thumb_w = round(($old_x * $new_h) / $old_y);
         $thumb_h = $new_h;
      } elseif ($old_x > $old_y) {
         $thumb_w = $new_w;
         $thumb_h = round(($old_y * $new_w) / $old_x);
      } else {
         $thumb_w = $new_w;
         $thumb_h = $new_h;
      }
   } else {
      $thumb_w = $old_x;
      $thumb_h = $old_y;
   }
   
   if ($settings['thumb_compression'] == "gd1") {
      $thumbimage = imagecreate($thumb_w,$thumb_h);
      $result = imagecopyresized($thumbimage, $origimage, 0, 0, 0, 0, $thumb_w, $thumb_h, $old_x, $old_y);
   } else {
      $thumbimage = imagecreatetruecolor($thumb_w,$thumb_h);
      $result = imagecopyresampled($thumbimage, $origimage, 0, 0, 0, 0, $thumb_w, $thumb_h, $old_x, $old_y);
   }
   
   touch($thumbfile);

   if ($filetype == 1) { imagegif($thumbimage, $thumbfile); }
   elseif ($filetype == 2) { imagejpeg($thumbimage, $thumbfile); }
   elseif ($filetype == 3) { imagepng($thumbimage, $thumbfile); }
}

function image_exists($dir, $image) {
   $i = 1;
   $image_name = substr($image, 0, strrpos($image, "."));
   $image_ext = strrchr($image,".");
   while (file_exists($dir.$image)) {
      $image = $image_name."_".$i.$image_ext;
      $i++;
   }
   return $image;
}
?>

<?php
/*---------------------------------------------------+
| PHPFusion 6 Content Management System
+----------------------------------------------------+
| Copyright © 2002 - 2006 Nick Jones
| http://www.php-fusion.co.uk/
+----------------------------------------------------+
| Released under the terms & conditions of v2 of the
| GNU General Public License. For details refer to
| the included gpl.txt file or visit http://gnu.org
+----------------------------------------------------*/
require_once "../maincore.php";
require_once BASEDIR."subheader.php";
require_once ADMIN."navigation.php";
include LOCALE.LOCALESET."admin/settings.php";

if (!checkRights("S7") || !defined("iAUTH") || $aid != iAUTH) fallback("../index.php");
$count = 0;

if (isset($_POST['saveoptions'])) {
   dbquery("UPDATE ".$db_prefix."messages_options SET 
      pm_email_notify = '".$_POST['pm_email_notify']."',
      pm_save_sent = '".$_POST['pm_save_sent']."',
      pm_inbox = '".$_POST['pm_inbox']."',
      pm_sentbox = '".$_POST['pm_sentbox']."',
      pm_savebox = '".$_POST['pm_savebox']."'
      WHERE user_id='0'"
   );
   redirect(FUSION_SELF.$aidlink);
}

$options = dbarray(dbquery("SELECT * FROM ".$db_prefix."messages_options WHERE user_id='0'"),0);
$pm_inbox = $options['pm_inbox'];
$pm_sentbox = $options['pm_sentbox'];
$pm_savebox = $options['pm_savebox'];

opentable($locale['400']);
require_once ADMIN."settings_links.php";
echo "<form name='optionsform' method='post' action='".FUSION_SELF.$aidlink."&amp;folder=options'>
<table align='center' cellpadding='0' cellspacing='0' width='500'>
<tr>
<td class='tbl2' align='center' colspan='2'>".$locale['707']."</td>
</tr>
<tr>
<td class='tbl' width='50%'>".$locale['701']."<br><span class='small2'>".$locale['704']."</span></td>
<td class='tbl' width='50%'><input type='text' name='pm_inbox' maxlength='4' class='textbox' style='width:40px;' value='".$pm_inbox."'></td>
</tr>
<tr>
<td class='tbl' width='50%'>".$locale['702']."<br><span class='small2'>".$locale['704']."</span></td>
<td class='tbl' width='50%'><input type='text' name='pm_sentbox' maxlength='4' class='textbox' style='width:40px;' value='".$pm_sentbox."'></td>
</tr>
<tr>
<td class='tbl' width='50%'>".$locale['703']."<br><span class='small2'>".$locale['704']."</span></td>
<td class='tbl' width='50%'><input type='text' name='pm_savebox' maxlength='4' class='textbox' style='width:40px;' value='".$pm_savebox."'></td>
</tr>
<tr><td class='tbl' align='center' colspan='2'><br></td></tr>   
<tr>
<td class='tbl2' align='center' colspan='2'>".$locale['708']."</td>
</tr>
<tr>
<td class='tbl' width='50%'>".$locale['709']."</td>
<td class='tbl' width='50%'>
<select name='pm_email_notify' class='textbox'>
<option value='0'".($options['pm_email_notify'] == "0" ? " selected" : "").">".$locale['509']."</option>
<option value='1'".($options['pm_email_notify'] == "1" ? " selected" : "").">".$locale['508']."</option>
</select>
</td>
</tr>
<tr>
<td class='tbl' width='50%'>".$locale['710']."</td>
<td class='tbl' width='50%'>
<select name='pm_save_sent' class='textbox'>
<option value='0'".($options['pm_save_sent'] == "0" ? " selected" : "").">".$locale['509']."</option>
<option value='1'".($options['pm_save_sent'] == "1" ? " selected" : "").">".$locale['508']."</option>
</select>
</td>
</tr>
<tr>
<td align='center' colspan='2' class='tbl'><span class='small2'>".$locale['711']."</span></td>
</tr>
<tr>
<td align='center' colspan='2' class='tbl'><br>
<input type='submit' name='saveoptions' value='".$locale['750']."' class='button'>
</td>
</tr>
</table>
</form>\n";
closetable();

echo "</td>\n";
require_once BASEDIR."footer.php";
?>