Fatal error: There is no access to the system temporary fold

Wieder ein mal ein fehler gestern ging das forum noch und jetzt bekomm ich die fehler meldung.

[code]Fatal error: There is no access to the system temporary folder due to an unknown reason and no user specific temporary folder exists in /www/wcf/! This is a misconfiguration of your webserver software! Please create a folder called /www/wcf/tmp/ using your favourite ftp program, make it writable and then retry this installation.

You get more information about the problem in our knowledge base: http://www.woltlab.com/help/?code=10000
Information:

error message: There is no access to the system temporary folder due to an unknown reason and no user specific temporary folder exists in /www/wcf/! This is a misconfiguration of your webserver software! Please create a folder called /www/wcf/tmp/ using your favourite ftp program, make it writable and then retry this installation.
error code: 10000
file: /www/wcf/lib/util/BasicFileUtil.class.php (65)
php version: 5.3.5
wcf version: 1.1.2 (Tempest)
date: Mon, 03 Oct 2011 08:46:43 +0000
request: /
referer:
Stacktrace:

#0 www/wcf/lib/system/WCF.class.php(92): BasicFileUtil::getTempFolder()
#1 /www/global.php(18): WCF->__construct()
#2 /www/index.php(7): require_once(’/users/vde-subs…’)
#3 {main}
[/code]

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