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The following hints should help you.

Category not found in engine/Shopware/Controllers/Frontend/Listing.php on line 267

Stack trace:

#0 engine/Shopware/Controllers/Frontend/Listing.php(57): Shopware_Controllers_Frontend_Listing->getRedirectLocation(NULL, true)
#1 engine/Library/Enlight/Controller/Action.php(159): Shopware_Controllers_Frontend_Listing->indexAction()
#2 engine/Library/Enlight/Controller/Dispatcher/Default.php(530): Enlight_Controller_Action->dispatch('indexAction')
#3 engine/Library/Enlight/Controller/Front.php(223): Enlight_Controller_Dispatcher_Default->dispatch(Object(Enlight_Controller_Request_RequestHttp), Object(Enlight_Controller_Response_ResponseHttp))
#4 engine/Shopware/Kernel.php(191): Enlight_Controller_Front->dispatch()
#5 vendor/symfony/http-kernel/HttpCache/HttpCache.php(484): Shopware\Kernel->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#6 engine/Shopware/Components/HttpCache/AppCache.php(268): Symfony\Component\HttpKernel\HttpCache\HttpCache->forward(Object(Symfony\Component\HttpFoundation\Request), true, NULL)
#7 vendor/symfony/http-kernel/HttpCache/HttpCache.php(441): Shopware\Components\HttpCache\AppCache->forward(Object(Symfony\Component\HttpFoundation\Request), true)
#8 vendor/symfony/http-kernel/HttpCache/HttpCache.php(337): Symfony\Component\HttpKernel\HttpCache\HttpCache->fetch(Object(Symfony\Component\HttpFoundation\Request), true)
#9 engine/Shopware/Components/HttpCache/AppCache.php(189): Symfony\Component\HttpKernel\HttpCache\HttpCache->lookup(Object(Symfony\Component\HttpFoundation\Request), true)
#10 vendor/symfony/http-kernel/HttpCache/HttpCache.php(203): Shopware\Components\HttpCache\AppCache->lookup(Object(Symfony\Component\HttpFoundation\Request), true)
#11 engine/Shopware/Components/HttpCache/AppCache.php(116): Symfony\Component\HttpKernel\HttpCache\HttpCache->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true)
#12 shopware.php(118): Shopware\Components\HttpCache\AppCache->handle(Object(Symfony\Component\HttpFoundation\Request))
#13 {main}