Fehlermeldung bei Installation

Mon, 25 Sep 2017 20:45:16 +0000
Message: Could not execute prepared statement: SQLSTATE[23000]: Integrity constraint violation: 1062 Duplicate entry 'wcf.acp.package.packageName.package155-2' for key 'languageItem'
File: /var/www/vhosts/zensiert.de/httpdocs/forum/wcf/lib/system/database/statement/PreparedStatement.class.php (97)
PHP version: 5.4.45-0+deb7u5
WCF version: 2.1.11 (Typhoon)
Request URI: /forum/acp/index.php?install-package/&t=4d8c031b090914269c968757e458f791d086ede9&s=06669f9ed0420d476514d24b5623dda4a9f47297
Referrer: http://zensiert.de/forum/acp/index.php?package-installation-confirm/&queueID=278&s=06669f9ed0420d476514d24b5623dda4a9f47297
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:55.0) Gecko/20100101 Firefox/55.0
Information: "<b>sql type:<\/b> wcf\\system\\database\\MySQLDatabase<br \/><b>sql error:<\/b> Duplicate entry 'wcf.acp.package.packageName.package155-2' for key 'languageItem'<br \/><b>sql error number:<\/b> 23000<br \/><b>sql version:<\/b> 5.5.53-0+deb7u1<br \/><b>sql query:<\/b> INSERT INTO\twcf1_language_item\n\t\t\t\t\t(languageID, languageItem, languageItemValue, languageCategoryID, packageID)\n\t\t\tVALUES\t\t(?, ?, ?, ?, ?)<br \/><b>sql query parameter 0:<\/b>2<br \/><b>sql query parameter 1:<\/b>wcf.acp.package.packageName.package155<br \/><b>sql query parameter 2:<\/b>Themen ignorieren<br \/><b>sql query parameter 3:<\/b>18<br \/><b>sql query parameter 4:<\/b>1<br \/>"
Stacktrace: 
  #0 /var/www/vhosts/zensiert.de/httpdocs/forum/wcf/lib/system/package/PackageInstallationDispatcher.class.php(523): wcf\system\database\statement\PreparedStatement->execute(Array)
  #1 /var/www/vhosts/zensiert.de/httpdocs/forum/wcf/lib/system/package/PackageInstallationDispatcher.class.php(468): wcf\system\package\PackageInstallationDispatcher->saveLocalizedPackageInfo(Object(wcf\system\database\statement\PreparedStatement), Object(wcf\data\language\LanguageList), Object(wcf\data\language\category\LanguageCategory), Object(wcf\data\package\Package), 'packageName')
  #2 /var/www/vhosts/zensiert.de/httpdocs/forum/wcf/lib/system/package/PackageInstallationDispatcher.class.php(182): wcf\system\package\PackageInstallationDispatcher->saveLocalizedPackageInfos()
  #3 /var/www/vhosts/zensiert.de/httpdocs/forum/wcf/lib/acp/action/InstallPackageAction.class.php(73): wcf\system\package\PackageInstallationDispatcher->install('320ca64a')
  #4 /var/www/vhosts/zensiert.de/httpdocs/forum/wcf/lib/action/AbstractDialogAction.class.php(70): wcf\acp\action\InstallPackageAction->stepInstall()
  #5 /var/www/vhosts/zensiert.de/httpdocs/forum/wcf/lib/action/AbstractAction.class.php(49): wcf\action\AbstractDialogAction->execute()
  #6 /var/www/vhosts/zensiert.de/httpdocs/forum/wcf/lib/system/request/Request.class.php(58): wcf\action\AbstractAction->__run()
  #7 /var/www/vhosts/zensiert.de/httpdocs/forum/wcf/lib/system/request/RequestHandler.class.php(139): wcf\system\request\Request->execute()
  #8 /var/www/vhosts/zensiert.de/httpdocs/forum/acp/index.php(10): wcf\system\request\RequestHandler->handle('wbb', true)
  #9 {main}