Fatal error: Uncaught Laminas\Diactoros\Exception\InvalidArgumentException: Uri provided to Laminas\Diactoros\Response\RedirectResponse MUST be a string or Psr\Http\Message\UriInterface instance; received "null" in /var/www/vhosts/dipoxy.de/httpdocs/includes/vendor/laminas/laminas-diactoros/src/Response/RedirectResponse.php:35
Stack trace:
#0 /var/www/vhosts/dipoxy.de/httpdocs/includes/src/Router/Controller/ProductListController.php(227): Laminas\Diactoros\Response\RedirectResponse->__construct()
#1 /var/www/vhosts/dipoxy.de/httpdocs/includes/src/Router/Controller/ProductListController.php(113): JTL\Router\Controller\ProductListController->checkProductRedirect()
#2 /var/www/vhosts/dipoxy.de/httpdocs/includes/src/Router/Controller/CategoryController.php(75): JTL\Router\Controller\ProductListController->getResponse()
#3 /var/www/vhosts/dipoxy.de/httpdocs/includes/src/Router/Controller/DefaultController.php(144): JTL\Router\Controller\CategoryController->getResponse()
#4 /var/www/vhosts/dipoxy.de/httpdocs/includes/src/Router/Controller/DefaultController.php(108): JTL\Router\Controller\DefaultController->redirectOldRoute()
#5 /var/www/vhosts/dipoxy.de/httpdocs/includes/src/Router/Router.php(670): JTL\Router\Controller\DefaultController->getResponse()
#6 /var/www/vhosts/dipoxy.de/httpdocs/includes/src/Shop.php(378): JTL\Router\Router->dispatch()
#7 /var/www/vhosts/dipoxy.de/httpdocs/index.php(9): JTL\Shop::dispatch()
#8 {main}
  thrown in /var/www/vhosts/dipoxy.de/httpdocs/includes/vendor/laminas/laminas-diactoros/src/Response/RedirectResponse.php on line 35