Fehlermeldungen verstehen

Hallo ihr Lieben, ich habe in meinem Log heute eine Fehlermeldung bekommen die ich nicht verstehe. Kann mir jemand helfen? Log: [2015-04-15 17:07:48] core.ERROR: exception 'Zend\_Session\_Exception' with message 'Zend\_Session::start() - /mnt/webr/e2/09/54454009/htdocs/engine/Library/Zend/Cache/Backend/File.php(Line:949): Error #2 mkdir(): File exists' in /mnt/webr/e2/09/54454009/htdocs/engine/Library/Zend/Session.php:506 Stack trace: #0 /mnt/webr/e2/09/54454009/htdocs/engine/Shopware/Components/DependencyInjection/Bridge/Session.php(77): Zend\_Session::start(Array) #1 /mnt/webr/e2/09/54454009/htdocs/cache/proxies/Shopware201504021339ProductionProjectContainer.php(281): Shopware\Components\DependencyInjection\Bridge\Session-\>factory(Object(Shopware201504021339ProductionProjectContainer)) #2 /mnt/webr/e2/09/54454009/htdocs/vendor/symfony/dependency-injection/Symfony/Component/DependencyInjection/Container.php(326): Shopware201504021339ProductionProjectContainer-\>getSessionService() #3 /mnt/webr/e2/09/54454009/htdocs/engine/Shopware/Components/DependencyInjection/Container.php(253): Symfony\Component\DependencyInjection\Container-\>get('session') #4 /mnt/webr/e2/09/54454009/htdocs/engine/Shopware/Components/DependencyInjection/Container.php(188): Shopware\Components\DependencyInjection\Container-\>load('session') #5 /mnt/webr/e2/09/54454009/htdocs/engine/Shopware/Bootstrap.php(149): Shopware\Components\DependencyInjection\Container-\>get('Session') #6 /mnt/webr/e2/09/54454009/htdocs/engine/Shopware/Application.php(196): Shopware\_Bootstrap-\>getResource('Session') #7 /mnt/webr/e2/09/54454009/htdocs/engine/Shopware/Plugins/Default/Core/Router/Bootstrap.php(306): Shopware-\>Session() #8 /mnt/webr/e2/09/54454009/htdocs/engine/Shopware/Plugins/Default/Core/Router/Bootstrap.php(194): Shopware\_Plugins\_Core\_Router\_Bootstrap-\>upgradeShop(Object(Enlight\_Controller\_Request\_RequestHttp), Object(Enlight\_Controller\_Response\_ResponseHttp)) #9 /mnt/webr/e2/09/54454009/htdocs/engine/Library/Enlight/Event/Handler/Plugin.php(149): Shopware\_Plugins\_Core\_Router\_Bootstrap-\>onRouteShutdown(Object(Enlight\_Controller\_EventArgs)) #10 /mnt/webr/e2/09/54454009/htdocs/engine/Library/Enlight/Event/EventManager.php(211): Enlight\_Event\_Handler\_Plugin-\>execute(Object(Enlight\_Controller\_EventArgs)) #11 /mnt/webr/e2/09/54454009/htdocs/engine/Library/Enlight/Controller/Front.php(190): Enlight\_Event\_EventManager-\>notify('Enlight\_Control...', Object(Enlight\_Controller\_EventArgs)) #12 /mnt/webr/e2/09/54454009/htdocs/engine/Shopware/Kernel.php(145): Enlight\_Controller\_Front-\>dispatch() #13 /mnt/webr/e2/09/54454009/htdocs/vendor/symfony/http-kernel/Symfony/Component/HttpKernel/HttpCache/HttpCache.php(471): Shopware\Kernel-\>handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #14 /mnt/webr/e2/09/54454009/htdocs/engine/Shopware/Components/HttpCache/AppCache.php(256): Symfony\Component\HttpKernel\HttpCache\HttpCache-\>forward(Object(Symfony\Component\HttpFoundation\Request), true, Object(Symfony\Component\HttpFoundation\Response)) #15 /mnt/webr/e2/09/54454009/htdocs/vendor/symfony/http-kernel/Symfony/Component/HttpKernel/HttpCache/HttpCache.php(375): Shopware\Components\HttpCache\AppCache-\>forward(Object(Symfony\Component\HttpFoundation\Request), true, Object(Symfony\Component\HttpFoundation\Response)) #16 /mnt/webr/e2/09/54454009/htdocs/vendor/symfony/http-kernel/Symfony/Component/HttpKernel/HttpCache/HttpCache.php(334): Symfony\Component\HttpKernel\HttpCache\HttpCache-\>validate(Object(Symfony\Component\HttpFoundation\Request), Object(Symfony\Component\HttpFoundation\Response), true) #17 /mnt/webr/e2/09/54454009/htdocs/engine/Shopware/Components/HttpCache/AppCache.php(178): Symfony\Component\HttpKernel\HttpCache\HttpCache-\>lookup(Object(Symfony\Component\HttpFoundation\Request), true) #18 /mnt/webr/e2/09/54454009/htdocs/vendor/symfony/http-kernel/Symfony/Component/HttpKernel/HttpCache/HttpCache.php(192): Shopware\Components\HttpCache\AppCache-\>lookup(Object(Symfony\Component\HttpFoundation\Request), true) #19 /mnt/webr/e2/09/54454009/htdocs/engine/Shopware/Components/HttpCache/AppCache.php(113): Symfony\Component\HttpKernel\HttpCache\HttpCache-\>handle(Object(Symfony\Component\HttpFoundation\Request), 2, true) #20 /mnt/webr/e2/09/54454009/htdocs/vendor/symfony/http-kernel/Symfony/Component/HttpKernel/HttpCache/Esi.php(200): Shopware\Components\HttpCache\AppCache-\>handle(Object(Symfony\Component\HttpFoundation\Request), 2, true) #21 /mnt/webr/e2/09/54454009/htdocs/cache/html/en/10/31/84b4a17c5e950adf78cf9df6a3ec490c395e8f0dc805382e334db303458a(100): Symfony\Component\HttpKernel\HttpCache\Esi-\>handle(Object(Shopware\Components\HttpCache\AppCache), 'http://timmerma...', '', false) #22 /mnt/webr/e2/09/54454009/htdocs/vendor/symfony/http-kernel/Symfony/Component/HttpKernel/HttpCache/HttpCache.php(625): include('/mnt/webr/e2/09...') #23 /mnt/webr/e2/09/54454009/htdocs/vendor/symfony/http-kernel/Symfony/Component/HttpKernel/HttpCache/HttpCache.php(195): Symfony\Component\HttpKernel\HttpCache\HttpCache-\>restoreResponseBody(Object(Symfony\Component\HttpFoundation\Request), Object(Symfony\Component\HttpFoundation\Response)) #24 /mnt/webr/e2/09/54454009/htdocs/engine/Shopware/Components/HttpCache/AppCache.php(113): Symfony\Component\HttpKernel\HttpCache\HttpCache-\>handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #25 /mnt/webr/e2/09/54454009/htdocs/shopware.php(109): Shopware\Components\HttpCache\AppCache-\>handle(Object(Symfony\Component\HttpFoundation\Request)) #26 {main} [] {"uid":"49454b0"} [2015-04-15 17:07:48] core.ERROR: exception 'Zend\_Session\_Exception' with message 'Zend\_Session::start() - /mnt/webr/e2/09/54454009/htdocs/engine/Library/Zend/Cache/Backend/File.php(Line:949): Error #2 mkdir(): File exists' in /mnt/webr/e2/09/54454009/htdocs/engine/Library/Zend/Session.php:506 Stack trace: #0 /mnt/webr/e2/09/54454009/htdocs/engine/Shopware/Components/DependencyInjection/Bridge/Session.php(77): Zend\_Session::start(Array) #1 /mnt/webr/e2/09/54454009/htdocs/cache/proxies/Shopware201504021339ProductionProjectContainer.php(281): Shopware\Components\DependencyInjection\Bridge\Session-\>factory(Object(Shopware201504021339ProductionProjectContainer)) #2 /mnt/webr/e2/09/54454009/htdocs/vendor/symfony/dependency-injection/Symfony/Component/DependencyInjection/Container.php(326): Shopware201504021339ProductionProjectContainer-\>getSessionService() #3 /mnt/webr/e2/09/54454009/htdocs/engine/Shopware/Components/DependencyInjection/Container.php(253): Symfony\Component\DependencyInjection\Container-\>get('session') #4 /mnt/webr/e2/09/54454009/htdocs/engine/Shopware/Components/DependencyInjection/Container.php(188): Shopware\Components\DependencyInjection\Container-\>load('session') #5 /mnt/webr/e2/09/54454009/htdocs/engine/Shopware/Bootstrap.php(149): Shopware\Components\DependencyInjection\Container-\>get('Session') #6 /mnt/webr/e2/09/54454009/htdocs/engine/Shopware/Application.php(196): Shopware\_Bootstrap-\>getResource('Session') #7 /mnt/webr/e2/09/54454009/htdocs/engine/Shopware/Plugins/Default/Core/Router/Bootstrap.php(306): Shopware-\>Session() #8 /mnt/webr/e2/09/54454009/htdocs/engine/Shopware/Plugins/Default/Core/Router/Bootstrap.php(194): Shopware\_Plugins\_Core\_Router\_Bootstrap-\>upgradeShop(Object(Enlight\_Controller\_Request\_RequestHttp), Object(Enlight\_Controller\_Response\_ResponseHttp)) #9 /mnt/webr/e2/09/54454009/htdocs/engine/Library/Enlight/Event/Handler/Plugin.php(149): Shopware\_Plugins\_Core\_Router\_Bootstrap-\>onRouteShutdown(Object(Enlight\_Controller\_EventArgs)) #10 /mnt/webr/e2/09/54454009/htdocs/engine/Library/Enlight/Event/EventManager.php(211): Enlight\_Event\_Handler\_Plugin-\>execute(Object(Enlight\_Controller\_EventArgs)) #11 /mnt/webr/e2/09/54454009/htdocs/engine/Library/Enlight/Controller/Front.php(190): Enlight\_Event\_EventManager-\>notify('Enlight\_Control...', Object(Enlight\_Controller\_EventArgs)) #12 /mnt/webr/e2/09/54454009/htdocs/engine/Shopware/Kernel.php(145): Enlight\_Controller\_Front-\>dispatch() #13 /mnt/webr/e2/09/54454009/htdocs/vendor/symfony/http-kernel/Symfony/Component/HttpKernel/HttpCache/HttpCache.php(471): Shopware\Kernel-\>handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #14 /mnt/webr/e2/09/54454009/htdocs/engine/Shopware/Components/HttpCache/AppCache.php(256): Symfony\Component\HttpKernel\HttpCache\HttpCache-\>forward(Object(Symfony\Component\HttpFoundation\Request), true, NULL) #15 /mnt/webr/e2/09/54454009/htdocs/vendor/symfony/http-kernel/Symfony/Component/HttpKernel/HttpCache/HttpCache.php(242): Shopware\Components\HttpCache\AppCache-\>forward(Object(Symfony\Component\HttpFoundation\Request), true) #16 /mnt/webr/e2/09/54454009/htdocs/engine/Shopware/Components/HttpCache/AppCache.php(106): Symfony\Component\HttpKernel\HttpCache\HttpCache-\>pass(Object(Symfony\Component\HttpFoundation\Request), true) #17 /mnt/webr/e2/09/54454009/htdocs/shopware.php(109): Shopware\Components\HttpCache\AppCache-\>handle(Object(Symfony\Component\HttpFoundation\Request)) #18 {main} [] {"uid":"e691d24"} [2015-04-15 17:08:01] core.ERROR: exception 'Exception' with message 'Referer check for backend session failed' in /mnt/webr/e2/09/54454009/htdocs/engine/Shopware/Plugins/Default/Backend/Auth/Bootstrap.php:442 Stack trace: #0 /mnt/webr/e2/09/54454009/htdocs/engine/Library/Enlight/Event/Handler/Plugin.php(149): Shopware\_Plugins\_Backend\_Auth\_Bootstrap-\>onInitResourceBackendSession(Object(Enlight\_Event\_EventArgs)) #1 /mnt/webr/e2/09/54454009/htdocs/engine/Library/Enlight/Event/EventManager.php(252): Enlight\_Event\_Handler\_Plugin-\>execute(Object(Enlight\_Event\_EventArgs)) #2 /mnt/webr/e2/09/54454009/htdocs/engine/Shopware/Components/DependencyInjection/Container.php(247): Enlight\_Event\_EventManager-\>notifyUntil('Enlight\_Bootstr...', Array) #3 /mnt/webr/e2/09/54454009/htdocs/engine/Shopware/Bootstrap.php(168): Shopware\Components\DependencyInjection\Container-\>load('BackendSession') #4 /mnt/webr/e2/09/54454009/htdocs/engine/Shopware/Plugins/Default/Backend/Auth/Bootstrap.php(467): Shopware\_Bootstrap-\>loadResource('BackendSession') #5 /mnt/webr/e2/09/54454009/htdocs/engine/Library/Enlight/Event/Handler/Plugin.php(149): Shopware\_Plugins\_Backend\_Auth\_Bootstrap-\>onInitResourceAuth(Object(Enlight\_Event\_EventArgs)) #6 /mnt/webr/e2/09/54454009/htdocs/engine/Library/Enlight/Event/EventManager.php(252): Enlight\_Event\_Handler\_Plugin-\>execute(Object(Enlight\_Event\_EventArgs)) #7 /mnt/webr/e2/09/54454009/htdocs/engine/Shopware/Components/DependencyInjection/Container.php(247): Enlight\_Event\_EventManager-\>notifyUntil('Enlight\_Bootstr...', Array) #8 /mnt/webr/e2/09/54454009/htdocs/engine/Shopware/Components/DependencyInjection/Container.php(142): Shopware\Components\DependencyInjection\Container-\>load('auth') #9 /mnt/webr/e2/09/54454009/htdocs/engine/Shopware/Bootstrap.php(124): Shopware\Components\DependencyInjection\Container-\>has('Auth') #10 /mnt/webr/e2/09/54454009/htdocs/engine/Library/Enlight/Application.php(452): Shopware\_Bootstrap-\>hasResource('Auth') #11 /mnt/webr/e2/09/54454009/htdocs/engine/Shopware/Controllers/Backend/ExtJs.php(162): Enlight\_Application-\>\_\_call('Auth', Array) #12 /mnt/webr/e2/09/54454009/htdocs/engine/Shopware/Controllers/Backend/ExtJs.php(162): Shopware-\>Auth() #13 /mnt/webr/e2/09/54454009/htdocs/engine/Library/Enlight/Controller/Action.php(159): Shopware\_Controllers\_Backend\_ExtJs-\>indexAction() #14 /mnt/webr/e2/09/54454009/htdocs/engine/Library/Enlight/Controller/Dispatcher/Default.php(528): Enlight\_Controller\_Action-\>dispatch('indexAction') #15 /mnt/webr/e2/09/54454009/htdocs/engine/Library/Enlight/Controller/Front.php(228): Enlight\_Controller\_Dispatcher\_Default-\>dispatch(Object(Enlight\_Controller\_Request\_RequestHttp), Object(Enlight\_Controller\_Response\_ResponseHttp)) #16 /mnt/webr/e2/09/54454009/htdocs/engine/Shopware/Kernel.php(145): Enlight\_Controller\_Front-\>dispatch() #17 /mnt/webr/e2/09/54454009/htdocs/vendor/symfony/http-kernel/Symfony/Component/HttpKernel/HttpCache/HttpCache.php(471): Shopware\Kernel-\>handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #18 /mnt/webr/e2/09/54454009/htdocs/engine/Shopware/Components/HttpCache/AppCache.php(256): Symfony\Component\HttpKernel\HttpCache\HttpCache-\>forward(Object(Symfony\Component\HttpFoundation\Request), true, NULL) #19 /mnt/webr/e2/09/54454009/htdocs/vendor/symfony/http-kernel/Symfony/Component/HttpKernel/HttpCache/HttpCache.php(242): Shopware\Components\HttpCache\AppCache-\>forward(Object(Symfony\Component\HttpFoundation\Request), true) #20 /mnt/webr/e2/09/54454009/htdocs/engine/Shopware/Components/HttpCache/AppCache.php(102): Symfony\Component\HttpKernel\HttpCache\HttpCache-\>pass(Object(Symfony\Component\HttpFoundation\Request), true) #21 /mnt/webr/e2/09/54454009/htdocs/shopware.php(109): Shopware\Components\HttpCache\AppCache-\>handle(Object(Symfony\Component\HttpFoundation\Request)) #22 {main} [] {"uid":"0931624"} Vielen Dank Paul