Warning: include(/var/www/alwoma.de/lib/Varien/Event/Collection.php): failed to open stream: Too many open files in system in /var/www/alwoma.de/lib/Varien/Autoload.php on line 94

Warning: include(): Failed opening 'Varien/Event/Collection.php' for inclusion (include_path='/var/www/alwoma.de/app/code/local:/var/www/alwoma.de/app/code/community:/var/www/alwoma.de/app/code/core:/var/www/alwoma.de/lib:.:/usr/share/php:/usr/share/pear') in /var/www/alwoma.de/lib/Varien/Autoload.php on line 94

Fatal error: Class 'Varien_Event_Collection' not found in /var/www/alwoma.de/app/Mage.php on line 677