Fatal error: Uncaught Assert\InvalidArgumentException: Value "<NULL>" is not an integer or a number castable to integer. in /var/www/html/shopnology.de/demo/vendor/beberlei/assert/lib/Assert/Assertion.php:288 Stack trace: #0 /var/www/html/shopnology.de/demo/vendor/beberlei/assert/lib/Assert/Assertion.php(530): Assert\Assertion::createException(NULL, 'Value "<NULL>" ...', 12, NULL) #1 /var/www/html/shopnology.de/demo/vendor/beberlei/assert/lib/Assert/Assertion.php(1934): Assert\Assertion::integerish(NULL) #2 /var/www/html/shopnology.de/demo/engine/Shopware/Bundle/SearchBundle/Condition/CategoryCondition.php(47): Assert\Assertion::__callStatic('Integerish', Array) #3 /var/www/html/shopnology.de/demo/engine/Shopware/Bundle/SearchBundle/StoreFrontCriteriaFactory.php(83): Shopware\Bundle\SearchBundle\Condition\CategoryCondition->__construct(Array) #4 /var/www/html/shopnology.de/demo/engine/Shopware/Bundle/SitemapBundle/Provider/ProductUrlProvider.php(97): Shopware\Bundle\SearchBundle\StoreFrontCriteriaFactory->createBaseCriter in /var/www/html/shopnology.de/demo/vendor/beberlei/assert/lib/Assert/Assertion.php on line 288