Fatal error: Uncaught Error: Call to a member function toArray() on null in /var/www/moebel-shop/htdocs/moebelshop_2019/custom/plugins/OstArticleAssemblySurcharge/Listeners/Controllers/Frontend/Detail.php:93 Stack trace: #0 /var/www/moebel-shop/htdocs/moebelshop_2019/vendor/shopware/shopware/engine/Library/Enlight/Event/Handler/Default.php(91): OstArticleAssemblySurcharge\Listeners\Controllers\Frontend\Detail->onPostDispatch(Object(Enlight_Controller_ActionEventArgs)) #1 /var/www/moebel-shop/htdocs/moebelshop_2019/vendor/shopware/shopware/engine/Library/Enlight/Event/EventManager.php(219): Enlight_Event_Handler_Default->execute(Object(Enlight_Controller_ActionEventArgs)) #2 /var/www/moebel-shop/htdocs/moebelshop_2019/vendor/shopware/shopware/engine/Library/Enlight/Controller/Action.php(207): Enlight_Event_EventManager->notify('Enlight_Control...', Object(Enlight_Controller_ActionEventArgs)) #3 /var/www/moebel-shop/htdocs/moebelshop_2019/vendor/shopware/shopware/engine/Library/Enlight/Controller/Dispatcher/Default.php(563) in /var/www/moebel-shop/htdocs/moebelshop_2019/custom/plugins/OstArticleAssemblySurcharge/Listeners/Controllers/Frontend/Detail.php on line 93