artikelkategorie baum in backend statistik plugin

Shopware 5 Programmierung
1

in frontend geht diese (von sExport.php geklaut):

$breadcrumb = array_reverse(Shopware()->Modules()->sCategories()->sGetCategoriesByParent($categoryID));
foreach ($breadcrumb as $breadcrumbObj) {
    $breadcrumbs[] = $breadcrumbObj["name"];
}
return implode(">", $breadcrumbs);

aber in mein backend statistik plugin meckert es:

Fatal error: Uncaught exception 'Exception' with message 'Resource "shop" not found failure' in /foo/engine/Shopware/Components/DependencyInjection/Container.php:192 Stack trace: #0 /foo/engine/Shopware/Bootstrap.php(131): Shopware\Components\DependencyInjection\Container->get('Shop') #1 /foo/engine/Shopware/Application.php(166): Shopware_Bootstrap->getResource('Shop') #2 /foo/engine/Shopware/Core/sCategories.php(119): Shopware->Shop() #3 /foo/engine/Shopware/Components/Modules.php(73): sCategories->__construct() #4 /foo/engine/Shopware/Components/Modules.php(95): Shopware_Components_Modules->loadModule('sCategories') #5 /foo/engine/Shopware/Components/Modules.php(141): Shopware_Components_Modules->getModule('sCategories') #6 /foo/engine/Shopware/Plugins/Local/Backend/FoobarStatistik/Controllers/Backend/FoobarStatistik.ph in /foo/engine/Shopware/Components/DependencyInjection/Container.php on line 192

wat ist los?
gibts was besseres für weniger?