2.0.0 pl 3 lässt sich nicht installieren

Received 'Location: 11_9530883614f56b708ad9da8da4c79275cab0f3c6' from server, which is invalid.

Stacktrace:
#0 /www/htdocs/w0060f78/compiware/lib/util/HTTPRequest.class.php(389): wcf\util\HTTPRequest->parseReply()
#1 /www/htdocs/w0060f78/compiware/lib/system/package/PackageInstallationScheduler.class.php(248): wcf\util\HTTPRequest->execute()
#2 /www/htdocs/w0060f78/compiware/lib/system/package/PackageInstallationScheduler.class.php(526): wcf\system\package\PackageInstallationScheduler->downloadPackage('de.wbb-elite.pa...', Array)
#3 /www/htdocs/w0060f78/compiware/lib/system/package/PackageInstallationScheduler.class.php(104): wcf\system\package\PackageInstallationScheduler->updatePackage(121, '2.0.0 pl 3')
#4 /www/htdocs/w0060f78/compiware/lib/system/package/PackageInstallationScheduler.class.php(65): wcf\system\package\PackageInstallationScheduler->tryToInstallPackage(Object(wcf\data\package\Package), '2.0.0 pl 3', true, false)
#5 /www/htdocs/w0060f78/compiware/lib/data/package/update/PackageUpdateAction.class.php(520): wcf\system\package\PackageInstallationScheduler->buildPackageInstallationStack(false)
#6 /www/htdocs/w0060f78/compiware/lib/data/package/update/PackageUpdateAction.class.php(472): wcf\data\package\update\PackageUpdateAction->createQueue('update')
#7 [internal function]: wcf\data\package\update\PackageUpdateAction->prepareUpdate()
#8 /www/htdocs/w0060f78/compiware/lib/data/AbstractDatabaseObjectAction.class.php(204): call_user_func(Array)
#9 /www/htdocs/w0060f78/compiware/lib/action/AJAXProxyAction.class.php(74): wcf\data\AbstractDatabaseObjectAction->executeAction()
#10 /www/htdocs/w0060f78/compiware/lib/action/AJAXInvokeAction.class.php(104): wcf\action\AJAXProxyAction->invoke()
#11 /www/htdocs/w0060f78/compiware/lib/action/AbstractAction.class.php(47): wcf\action\AJAXInvokeAction->execute()
#12 /www/htdocs/w0060f78/compiware/lib/action/AJAXInvokeAction.class.php(63): wcf\action\AbstractAction->__run()
#13 /www/htdocs/w0060f78/compiware/lib/system/request/Request.class.php(83): wcf\action\AJAXInvokeAction->__run()
#14 /www/htdocs/w0060f78/compiware/lib/system/request/RequestHandler.class.php(94): wcf\system\request\Request->execute()
#15 /www/htdocs/w0060f78/compiware/acp/index.php(9): wcf\system\request\RequestHandler->handle('wcf', true)
#16 {main}
Invalid URL '11_9530883614f56b708ad9da8da4c79275cab0f3c6' given

Stacktrace
#0 /www/htdocs/w0060f78/compiware/lib/util/HTTPRequest.class.php(466): wcf\util\HTTPRequest->setURL('11_9530883614f5...')
#1 /www/htdocs/w0060f78/compiware/lib/util/HTTPRequest.class.php(389): wcf\util\HTTPRequest->parseReply()
#2 /www/htdocs/w0060f78/compiware/lib/system/package/PackageInstallationScheduler.class.php(248): wcf\util\HTTPRequest->execute()
#3 /www/htdocs/w0060f78/compiware/lib/system/package/PackageInstallationScheduler.class.php(526): wcf\system\package\PackageInstallationScheduler->downloadPackage('de.wbb-elite.pa...', Array)
#4 /www/htdocs/w0060f78/compiware/lib/system/package/PackageInstallationScheduler.class.php(104): wcf\system\package\PackageInstallationScheduler->updatePackage(121, '2.0.0 pl 3')
#5 /www/htdocs/w0060f78/compiware/lib/system/package/PackageInstallationScheduler.class.php(65): wcf\system\package\PackageInstallationScheduler->tryToInstallPackage(Object(wcf\data\package\Package), '2.0.0 pl 3', true, false)
#6 /www/htdocs/w0060f78/compiware/lib/data/package/update/PackageUpdateAction.class.php(520): wcf\system\package\PackageInstallationScheduler->buildPackageInstallationStack(false)
#7 /www/htdocs/w0060f78/compiware/lib/data/package/update/PackageUpdateAction.class.php(472): wcf\data\package\update\PackageUpdateAction->createQueue('update')
#8 [internal function]: wcf\data\package\update\PackageUpdateAction->prepareUpdate()
#9 /www/htdocs/w0060f78/compiware/lib/data/AbstractDatabaseObjectAction.class.php(204): call_user_func(Array)
#10 /www/htdocs/w0060f78/compiware/lib/action/AJAXProxyAction.class.php(74): wcf\data\AbstractDatabaseObjectAction->executeAction()
#11 /www/htdocs/w0060f78/compiware/lib/action/AJAXInvokeAction.class.php(104): wcf\action\AJAXProxyAction->invoke()
#12 /www/htdocs/w0060f78/compiware/lib/action/AbstractAction.class.php(47): wcf\action\AJAXInvokeAction->execute()
#13 /www/htdocs/w0060f78/compiware/lib/action/AJAXInvokeAction.class.php(63): wcf\action\AbstractAction->__run()
#14 /www/htdocs/w0060f78/compiware/lib/system/request/Request.class.php(83): wcf\action\AJAXInvokeAction->__run()
#15 /www/htdocs/w0060f78/compiware/lib/system/request/RequestHandler.class.php(94): wcf\system\request\Request->execute()
#16 /www/htdocs/w0060f78/compiware/acp/index.php(9): wcf\system\request\RequestHandler->handle('wcf', true)
#17 {main}