Fatal error: Uncaught TypeError: Argument 2 passed to MorgenSchmiedeButtonKing\Subscriber\Frontend::postFrontendDetailFixedCost() must be of the type array, null given, called in /var/www/vhosts/deinschilderdruck.de/httpdocs/engine/Shopware/Plugins/Local/Frontend/MorgenSchmiedeButtonKing/Subscriber/Frontend.php on line 350 and defined in /var/www/vhosts/deinschilderdruck.de/httpdocs/engine/Shopware/Plugins/Local/Frontend/MorgenSchmiedeButtonKing/Subscriber/Frontend.php:373 Stack trace: #0 /var/www/vhosts/deinschilderdruck.de/httpdocs/engine/Shopware/Plugins/Local/Frontend/MorgenSchmiedeButtonKing/Subscriber/Frontend.php(350): MorgenSchmiedeButtonKing\Subscriber\Frontend->postFrontendDetailFixedCost(Object(Enlight_Controller_ActionEventArgs), NULL) #1 /var/www/vhosts/deinschilderdruck.de/httpdocs/engine/Library/Enlight/Event/Handler/Default.php(91): MorgenSchmiedeButtonKing\Subscriber\Frontend->postFrontendDetail(Object(Enlight_Controller_ActionEventArgs)) #2 /var/www/vhosts/deinschilderdruck.de/httpdocs/engine/Library/Enl in /var/www/vhosts/deinschilderdruck.de/httpdocs/engine/Shopware/Plugins/Local/Frontend/MorgenSchmiedeButtonKing/Subscriber/Frontend.php on line 373