Fatal error: Uncaught TypeError: strtolower(): Argument #1 ($string) must be of type string, null given in /var/www/vhosts/web28.51588.onlineshophosting.de/html/shops/nippon-tackle/prod/plugins/nt_core/src/Product/Article.php:160
Stack trace:
#0 /var/www/vhosts/web28.51588.onlineshophosting.de/html/shops/nippon-tackle/prod/plugins/nt_core/src/Product/Article.php(160): strtolower()
#1 /var/www/vhosts/web28.51588.onlineshophosting.de/html/shops/nippon-tackle/prod/plugins/nt_core/src/Product/Article.php(146): Plugin\nt_core\src\Product\Article::setVersandkosten()
#2 /var/www/vhosts/web28.51588.onlineshophosting.de/html/shops/nippon-tackle/prod/plugins/nt_core/src/Setup.php(154): Plugin\nt_core\src\Product\Article::init()
#3 /var/www/vhosts/web28.51588.onlineshophosting.de/html/shops/nippon-tackle/prod/plugins/nt_core/Bootstrap.php(58): Plugin\nt_core\src\Setup::hook110()
#4 /var/www/vhosts/web28.51588.onlineshophosting.de/html/shops/nippon-tackle/prod/includes/src/Events/Dispatcher.php(72): Plugin\nt_core\Bootstrap->Plugin\nt_core\{closure}()
#5 /var/www/vhosts/web28.51588.onlineshophosting.de/html/shops/nippon-tackle/prod/includes/src/Plugin/HookManager.php(96): JTL\Events\Dispatcher->fire()
#6 /var/www/vhosts/web28.51588.onlineshophosting.de/html/shops/nippon-tackle/prod/includes/defines.php(345): JTL\Plugin\HookManager->executeHook()
#7 /var/www/vhosts/web28.51588.onlineshophosting.de/html/shops/nippon-tackle/prod/includes/src/Catalog/Product/Artikel.php(2770): executeHook()
#8 /var/www/vhosts/web28.51588.onlineshophosting.de/html/shops/nippon-tackle/prod/includes/src/Catalog/Product/Artikel.php(2961): JTL\Catalog\Product\Artikel->fuelleArtikel()
#9 /var/www/vhosts/web28.51588.onlineshophosting.de/html/shops/nippon-tackle/prod/includes/src/Catalog/Product/Artikel.php(2764): JTL\Catalog\Product\Artikel->retryWithoutStockFilter()
#10 /var/www/vhosts/web28.51588.onlineshophosting.de/html/shops/nippon-tackle/prod/includes/src/Helpers/Product.php(993): JTL\Catalog\Product\Artikel->fuelleArtikel()
#11 /var/www/vhosts/web28.51588.onlineshophosting.de/html/shops/nippon-tackle/prod/includes/src/Router/Controller/ProductController.php(346): JTL\Helpers\Product::buildXSellersFromIDs()
#12 /var/www/vhosts/web28.51588.onlineshophosting.de/html/shops/nippon-tackle/prod/includes/src/Router/Controller/DefaultController.php(144): JTL\Router\Controller\ProductController->getResponse()
#13 /var/www/vhosts/web28.51588.onlineshophosting.de/html/shops/nippon-tackle/prod/includes/src/Router/Controller/DefaultController.php(108): JTL\Router\Controller\DefaultController->redirectOldRoute()
#14 /var/www/vhosts/web28.51588.onlineshophosting.de/html/shops/nippon-tackle/prod/includes/src/Router/Strategy/SmartyStrategy.php(42): JTL\Router\Controller\DefaultController->getResponse()
#15 /var/www/vhosts/web28.51588.onlineshophosting.de/html/shops/nippon-tackle/prod/includes/vendor/league/route/src/Route.php(124): JTL\Router\Strategy\SmartyStrategy->invokeRouteCallable()
#16 /var/www/vhosts/web28.51588.onlineshophosting.de/html/shops/nippon-tackle/prod/includes/vendor/league/route/src/Dispatcher.php(59): League\Route\Route->process()
#17 /var/www/vhosts/web28.51588.onlineshophosting.de/html/shops/nippon-tackle/prod/includes/src/Router/Middleware/MaintenanceModeMiddleware.php(43): League\Route\Dispatcher->handle()
#18 /var/www/vhosts/web28.51588.onlineshophosting.de/html/shops/nippon-tackle/prod/includes/vendor/league/route/src/Dispatcher.php(59): JTL\Router\Middleware\MaintenanceModeMiddleware->process()
#19 /var/www/vhosts/web28.51588.onlineshophosting.de/html/shops/nippon-tackle/prod/includes/src/Router/Middleware/PhpFileCheckMiddleware.php(39): League\Route\Dispatcher->handle()
#20 /var/www/vhosts/web28.51588.onlineshophosting.de/html/shops/nippon-tackle/prod/includes/vendor/league/route/src/Dispatcher.php(59): JTL\Router\Middleware\PhpFileCheckMiddleware->process()
#21 /var/www/vhosts/web28.51588.onlineshophosting.de/html/shops/nippon-tackle/prod/includes/src/Router/Middleware/OptinMiddleware.php(29): League\Route\Dispatcher->handle()
#22 /var/www/vhosts/web28.51588.onlineshophosting.de/html/shops/nippon-tackle/prod/includes/vendor/league/route/src/Dispatcher.php(59): JTL\Router\Middleware\OptinMiddleware->process()
#23 /var/www/vhosts/web28.51588.onlineshophosting.de/html/shops/nippon-tackle/prod/includes/src/Router/Middleware/CurrencyCheckMiddleware.php(30): League\Route\Dispatcher->handle()
#24 /var/www/vhosts/web28.51588.onlineshophosting.de/html/shops/nippon-tackle/prod/includes/vendor/league/route/src/Dispatcher.php(59): JTL\Router\Middleware\CurrencyCheckMiddleware->process()
#25 /var/www/vhosts/web28.51588.onlineshophosting.de/html/shops/nippon-tackle/prod/includes/src/Router/Middleware/LocaleCheckMiddleware.php(38): League\Route\Dispatcher->handle()
#26 /var/www/vhosts/web28.51588.onlineshophosting.de/html/shops/nippon-tackle/prod/includes/vendor/league/route/src/Dispatcher.php(59): JTL\Router\Middleware\LocaleCheckMiddleware->process()
#27 /var/www/vhosts/web28.51588.onlineshophosting.de/html/shops/nippon-tackle/prod/includes/src/Router/Middleware/CartcheckMiddleware.php(27): League\Route\Dispatcher->handle()
#28 /var/www/vhosts/web28.51588.onlineshophosting.de/html/shops/nippon-tackle/prod/includes/vendor/league/route/src/Dispatcher.php(59): JTL\Router\Middleware\CartcheckMiddleware->process()
#29 /var/www/vhosts/web28.51588.onlineshophosting.de/html/shops/nippon-tackle/prod/includes/src/Router/Middleware/WishlistCheckMiddleware.php(26): League\Route\Dispatcher->handle()
#30 /var/www/vhosts/web28.51588.onlineshophosting.de/html/shops/nippon-tackle/prod/includes/vendor/league/route/src/Dispatcher.php(59): JTL\Router\Middleware\WishlistCheckMiddleware->process()
#31 /var/www/vhosts/web28.51588.onlineshophosting.de/html/shops/nippon-tackle/prod/includes/src/Router/Middleware/SSLRedirectMiddleware.php(45): League\Route\Dispatcher->handle()
#32 /var/www/vhosts/web28.51588.onlineshophosting.de/html/shops/nippon-tackle/prod/includes/vendor/league/route/src/Dispatcher.php(59): JTL\Router\Middleware\SSLRedirectMiddleware->process()
#33 /var/www/vhosts/web28.51588.onlineshophosting.de/html/shops/nippon-tackle/prod/includes/src/Router/Middleware/MaintenanceModeMiddleware.php(43): League\Route\Dispatcher->handle()
#34 /var/www/vhosts/web28.51588.onlineshophosting.de/html/shops/nippon-tackle/prod/includes/vendor/league/route/src/Dispatcher.php(59): JTL\Router\Middleware\MaintenanceModeMiddleware->process()
#35 /var/www/vhosts/web28.51588.onlineshophosting.de/html/shops/nippon-tackle/prod/includes/src/Router/Middleware/LocaleRedirectMiddleware.php(37): League\Route\Dispatcher->handle()
#36 /var/www/vhosts/web28.51588.onlineshophosting.de/html/shops/nippon-tackle/prod/includes/vendor/league/route/src/Dispatcher.php(59): JTL\Router\Middleware\LocaleRedirectMiddleware->process()
#37 /var/www/vhosts/web28.51588.onlineshophosting.de/html/shops/nippon-tackle/prod/includes/vendor/league/route/src/Strategy/ApplicationStrategy.php(37): League\Route\Dispatcher->handle()
#38 /var/www/vhosts/web28.51588.onlineshophosting.de/html/shops/nippon-tackle/prod/includes/vendor/league/route/src/Dispatcher.php(59): Psr\Http\Server\MiddlewareInterface@anonymous->process()
#39 /var/www/vhosts/web28.51588.onlineshophosting.de/html/shops/nippon-tackle/prod/includes/vendor/league/route/src/Dispatcher.php(53): League\Route\Dispatcher->handle()
#40 /var/www/vhosts/web28.51588.onlineshophosting.de/html/shops/nippon-tackle/prod/includes/vendor/league/route/src/Router.php(97): League\Route\Dispatcher->dispatchRequest()
#41 /var/www/vhosts/web28.51588.onlineshophosting.de/html/shops/nippon-tackle/prod/includes/src/Router/Router.php(654): League\Route\Router->dispatch()
#42 /var/www/vhosts/web28.51588.onlineshophosting.de/html/shops/nippon-tackle/prod/includes/src/Shop.php(378): JTL\Router\Router->dispatch()
#43 /var/www/vhosts/web28.51588.onlineshophosting.de/html/shops/nippon-tackle/prod/index.php(9): JTL\Shop::dispatch()
#44 {main}
thrown in /var/www/vhosts/web28.51588.onlineshophosting.de/html/shops/nippon-tackle/prod/plugins/nt_core/src/Product/Article.php on line 160