Upload tools.php from the do_not_upload folder into your admincp folder. Point your browser to it and reset the cookie domain. You cannot simply do that to one field in the database.
Before pointing the browser to the page , add the below given code in includes/config.php
.Add this line right under <?php
define(‘DISABLE_HOOKS’, true);
That would fix the issue
NOTE : I do not recommend this solution . Though you can follow this temporarily.
I have fixed this issue by commenting the below given code from the page includes>functions.php.
if (!$foundurl) {
eval(standard_error(fetch_error(‘invalid_redirect_url_x’, $vbulletin->url)));
}
<vb:if condition=”$show['languagechooser']“>
<select name=”langid” onChange=”switch_id(this, ‘lang’)”>
<optgroup label=”{vb:rawphrase quick_language_chooser}”>
{vb:raw languagechooserbits}
</optgroup>
</select>
</vb:if>
<vb:if condition=”$show['quickchooser']“>
<select name=”styleid” onChange=”switch_id(this, ‘style’)”>
<optgroup label=”{vb:rawphrase quick_style_chooser}”>
{vb:raw quickchooserbits}
</optgroup>
</select>
</vb:if>
1) Login to admin panel
2) Expand the “Settings” menu, and then click “Options”
3) Select the value “Style & Language Settings” from the drop down Setting Group
4) Check the value “Yes” under the tab Allow Users To Change Styles
1) Login to admin panel
2)Expand the “Settings” menu, and then click “Options”
3) Select the value “Style & Language Settings” from the drop down Setting Group
4) Select the value from the drop down under the tab “Default Style”

1)Create a file with desired name (let it be vb_delete.php) with the following code
require_once(‘class.forumops.php’);
$clientdata = unserialize($_POST['post']);
$forum = new ForumOps();
$errmsg = $forum->delete_user($clientdata['username']);
if ($errmsg) echo $errmsg;
else echo “User deleted successfully.
n”;
NOTE :You can download the script using the url http://wp.me/p1aZaf-1d
2)Upload the file to the server the vBulletin installed
3)Paste the below given code , immediately after the code that update the user details .
$clientdata = array( ‘username’ => $username);
$url=”http://www.example.com/forum/vb_delete.php”;
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt ($ch, CURLOPT_POST, 1);
curl_setopt ($ch, CURLOPT_POSTFIELDS, array(“post” => serialize($clientdata)));
curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);
$store = curl_exec ($ch);
echo $store;
curl_close ($ch);
exit;*/
// http://www.example.com/forum/ is the location where vbulletin is installed