Fatal error: Uncaught TypeError: JTL\Catalog\Product\Preise::customerHasCustomPriceForProduct(): Argument #2 ($productID) must be of type int, null given, called in /www/htdocs/w014eaf0/germens-shop/includes/src/Catalog/Product/Artikel.php on line 863 and defined in /www/htdocs/w014eaf0/germens-shop/includes/src/Catalog/Product/Preise.php:304 Stack trace: #0 /www/htdocs/w014eaf0/germens-shop/includes/src/Catalog/Product/Artikel.php(863): JTL\Catalog\Product\Preise->customerHasCustomPriceForProduct(0, NULL) #1 /www/htdocs/w014eaf0/germens-shop/includes/src/Catalog/Product/Artikel.php(3029): JTL\Catalog\Product\Artikel->getCustomerPrice(1, 0) #2 /www/htdocs/w014eaf0/germens-shop/includes/src/Catalog/Product/Artikel.php(2755): JTL\Catalog\Product\Artikel->loadFromCache(10745, 1) #3 /www/htdocs/w014eaf0/germens-shop/includes/src/Router/Controller/ProductController.php(54): JTL\Catalog\Product\Artikel->fuelleArtikel(10745, Object(stdClass), 1, 1) #4 /www/htdocs/w014eaf0/germens-shop/includes/src/Router/ControllerFactory.php(158): JTL\Router\Controller\ProductController->init() #5 /www/htdocs/w014eaf0/germens-shop/includes/src/Router/Controller/DefaultController.php(97): JTL\Router\ControllerFactory->getEntryPoint(Object(Laminas\Diactoros\ServerRequest)) #6 /www/htdocs/w014eaf0/germens-shop/includes/src/Router/Router.php(670): JTL\Router\Controller\DefaultController->getResponse(Object(Laminas\Diactoros\ServerRequest), Array, Object(JTL\Smarty\JTLSmarty)) #7 /www/htdocs/w014eaf0/germens-shop/includes/src/Shop.php(378): JTL\Router\Router->dispatch(Object(JTL\Smarty\JTLSmarty)) #8 /www/htdocs/w014eaf0/germens-shop/index.php(9): JTL\Shop::dispatch() #9 {main} thrown in /www/htdocs/w014eaf0/germens-shop/includes/src/Catalog/Product/Preise.php on line 304