Install Error Applications

Hi there,

when i try to install any Application i have following error:

Error: The following error has occurred during the installation of application: Installation of joomla at http://XXXX.de/joomla failed. Non-zero exit status returned by script. Output stream: 'PHP Fatal error: Call to undefined method DirectoryIterator::getExtension() in /var/www/vhosts/XXXXX.de/httpdocs/joomla/libraries/cms/installer/installer.php on line 2254 '. Error stream:...

Install Error Applications