Import von Artikeln via Plugin zerschießt die Artikel Übersicht im Backend

Hallo,

ich habe zum testen mal einen Artikel importiert. Format war CSV und es wurde das  offiziell von Shopware zur Verfügung gestellte Plugin hierzu benutzt.

Der Ladebalken stand wärend dem Vorgang sehr lange, ca. 1 - 2 Minuten, bei Uploading aber irgendwann ging dieser dann auch weg.

Nun wenn ich aber versuche die Artikel Übersicht im Backend aufzurufen bekomme ich folgenden Fehler:

 Ups! Ein Fehler ist aufgetreten! Die nachfolgenden Hinweise sollten Ihnen weiterhelfen. Could not find nor create '/var/www/html/files/backup/multi_edit/' in engine/Shopware/Components/MultiEdit/Resource/Product/Backup.php on line 113 Stack trace: #0 engine/Shopware/Components/MultiEdit/Resource/Product/Backup.php(72): Shopware\Components\MultiEdit\Resource\Product\Backup->setupBackupDir() #1 var/cache/production_201708221512/proxies/ShopwareProductionda39a3ee5e6b4b0d3255bfef95601890afd80709ProjectContainer.php(1044): Shopware\Components\MultiEdit\Resource\Product\Backup->__construct(Object(Shopware\Components\MultiEdit\Resource\Product\DqlHelper), Object(Shopware_Components_Config)) #2 vendor/symfony/dependency-injection/Container.php(304): ShopwareProductionda39a3ee5e6b4b0d3255bfef95601890afd80709ProjectContainer->getMultiEdit_Product_BackupService() #3 engine/Shopware/Components/DependencyInjection/Container.php(217): Symfony\Component\DependencyInjection\Container->get('multi_edit.prod...', 1) #4 engine/Shopware/Components/DependencyInjection/Container.php(146): Shopware\Components\DependencyInjection\Container->doLoad('multi_edit.prod...', 1) #5 var/cache/production_201708221512/proxies/ShopwareProductionda39a3ee5e6b4b0d3255bfef95601890afd80709ProjectContainer.php(1064): Shopware\Components\DependencyInjection\Container->get('multi_edit.prod...') #6 vendor/symfony/dependency-injection/Container.php(304): ShopwareProductionda39a3ee5e6b4b0d3255bfef95601890afd80709ProjectContainer->getMultiEdit_Product_QueueService() #7 engine/Shopware/Components/DependencyInjection/Container.php(217): Symfony\Component\DependencyInjection\Container->get('multi_edit.prod...', 1) #8 engine/Shopware/Components/DependencyInjection/Container.php(146): Shopware\Components\DependencyInjection\Container->doLoad('multi_edit.prod...', 1) #9 var/cache/production_201708221512/proxies/ShopwareProductionda39a3ee5e6b4b0d3255bfef95601890afd80709ProjectContainer.php(1048): Shopware\Components\DependencyInjection\Container->get('multi_edit.prod...') #10 vendor/symfony/dependency-injection/Container.php(304): ShopwareProductionda39a3ee5e6b4b0d3255bfef95601890afd80709ProjectContainer->getMultiEdit_Product_BatchProcessService() #11 engine/Shopware/Components/DependencyInjection/Container.php(217): Symfony\Component\DependencyInjection\Container->get('multi_edit.prod...', 1) #12 engine/Shopware/Components/DependencyInjection/Container.php(146): Shopware\Components\DependencyInjection\Container->doLoad('multi_edit.prod...', 1) #13 var/cache/production_201708221512/proxies/ShopwareProductionda39a3ee5e6b4b0d3255bfef95601890afd80709ProjectContainer.php(1040): Shopware\Components\DependencyInjection\Container->get('multi_edit.prod...') #14 vendor/symfony/dependency-injection/Container.php(304): ShopwareProductionda39a3ee5e6b4b0d3255bfef95601890afd80709ProjectContainer->getMultiEdit_ProductService() #15 engine/Shopware/Components/DependencyInjection/Container.php(217): Symfony\Component\DependencyInjection\Container->get('multi_edit.prod...', 1) #16 engine/Shopware/Components/DependencyInjection/Container.php(146): Shopware\Components\DependencyInjection\Container->doLoad('multi_edit.prod...', 1) #17 engine/Shopware/Controllers/Backend/ArticleList.php(167): Shopware\Components\DependencyInjection\Container->get('multi_edit.prod...') #