Fatal error: Cannot redeclare vbseo_thread_seotitle() (not closed yet)

[StarBuG]

Sorry but it is not closed.

Like I said, I DID the file changes (see code below) and uploaded it (and yes, I overwrote the old one).

if (!function_exists("vbseo_thread_seotitle")) {
function vbseo_thread_seotitle(&$vbseo_gcache_thread)
{
global $vbphrase;
if (!isset($vbseo_gcache_thread['seotitle']))
{
$ttl = ($vbseo_gcache_thread['title'] ? $vbseo_gcache_thread['title'] : $vbseo_gcache_thread['threadtitle']);
if(VBSEO_URL_THREAD_PREFIX && 
($prefid = $vbseo_gcache_thread['prefixid']) )
$ttl = (VBSEO_URL_THREAD_PREFIX_NAME ? $vbphrase["prefix_".$prefid."_title_plain"] : $prefid) . ' ' . $ttl;
$vbseo_gcache_thread['seotitle'] = vbseo_filter_replace_text ($ttl);
}
}
}

I set the vbseo option Keep Non-English Characters in URLs
Replace the 'META KEYWORDS' Content? is turned off.

Link Type is set to: VBSEO_URI

htaccess entries are added

Options +FollowSymLinks
RewriteEngine On
RewriteBase /

RewriteCond %{HTTP_HOST} !^www\.patientenfragen\.net$
RewriteRule (.*) http://www.patientenfragen.net/$1 [L,R=301]

RewriteRule ^/?(en|de)/$ vbenterprisetranslator_seo.php?vbet_lang=$1&redirected=/index.php [L,QSA]
RewriteRule ^/?(en|de)/(.*)?$ vbenterprisetranslator_seo.php?vbet_lang=$1&redirected=/$2 [L,QSA]

RewriteCond %{REQUEST_URI} !(admincp/|modcp/|vbseo_sitemap/|cron)
RewriteRule ^((archive/)?(.*\.php(/.*)?))$ vbenterprisetranslator_seo.php [L,QSA]

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !^(admincp|modcp|clientscript|cpstyles|images)/
RewriteRule $ vbenterprisetranslator_seo.php [L,QSA]

RewriteRule ^((urllist|sitemap_).*\.(xml|txt)(\.gz)?)$ vbseo_sitemap/vbseo_getsitemap.php?sitemap=$1 [L]

RewriteCond %{REQUEST_URI} !(admincp/|modcp/|chat|cron|vbseo_sitemap)
RewriteRule ^((archive/)?(.*\.php(/.*)?))$ vbseo.php [L,QSA]

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !/(admincp|modcp|clientscript|cpstyles|images)/
RewriteRule ^(.+)$ vbseo.php [L,QSA]

uploaded and the error is displayed.

So please advice

Thank you

StarBuG