Installation vom News-System

Fri, 04 Nov 2016 20:32:32 +0000
Message: Unable to run 'de.wbb-elite.news', '\system\Core' is missing or does not implement 'wcf\system\application\IApplication'.
File: /var/www/wcf/lib/system/WCF.class.php (535)
PHP version: 7.0.12-1~dotdeb+8.1
WCF version: 2.1.12 (Typhoon)
Request URI: /acp/index.php?package-list/&
Referrer: https://division-hq.de/acp/index.php?package-installation-confirm/&queueID=236&
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.71 Safari/537.36
Information: ""
Stacktrace: 
  #0 /var/www/wcf/lib/system/WCF.class.php(470): wcf\system\WCF->loadApplication(Object(wcf\data\application\Application), true)
  #1 /var/www/wcf/lib/system/WCFACP.class.php(51): wcf\system\WCF->initApplications()
  #2 /var/www/wcf/acp/global.php(19): wcf\system\WCFACP->__construct()
  #3 /var/www/acp/global.php(15): require_once('/var/www/wcf/ac...')
  #4 /var/www/acp/index.php(8): require_once('/var/www/acp/gl...')
  #5 {main}