Fatal error: Uncaught TypeError: Return value of Magento\Catalog\ViewModel\Product\Breadcrumbs::getProductName() must be of the type string, null returned in /usr/www/users/rolfadm/magento/vendor/magento/module-catalog/ViewModel/Product/Breadcrumbs.php:94 Stack trace: #0 /usr/www/users/rolfadm/magento/vendor/magento/module-catalog/ViewModel/Product/Breadcrumbs.php(109): Magento\Catalog\ViewModel\Product\Breadcrumbs->getProductName() #1 /usr/www/users/rolfadm/magento/vendor/magento/framework/Interception/Interceptor.php(58): Magento\Catalog\ViewModel\Product\Breadcrumbs->getJsonConfigurationHtmlEscaped() #2 /usr/www/users/rolfadm/magento/vendor/magento/framework/Interception/Interceptor.php(138): Magento\Catalog\ViewModel\Product\Breadcrumbs\Interceptor->___callParent('getJsonConfigur...', Array) #3 /usr/www/users/rolfadm/magento/vendor/magento/framework/Interception/Interceptor.php(153): Magento\Catalog\ViewModel\Product\Breadcrumbs\Interceptor->Magento\Framework\Interception\{closure}() #4 /usr/www/users/rolfadm/magento/ in /usr/www/users/rolfadm/magento/vendor/magento/module-catalog/ViewModel/Product/Breadcrumbs.php on line 94