Fatal error: Uncaught Error: Call to a member function get() on null in /usr/www/users/shopww/shop/custom/plugins/C3WmdCustomerGroupDiscount/C3WmdCustomerGroupDiscount.php:62 Stack trace: #0 /usr/www/users/shopww/shop/engine/Library/Enlight/Event/Handler/Default.php(87): C3WmdCustomerGroupDiscount\C3WmdCustomerGroupDiscount->dispatchFrontend(Object(Enlight_Controller_ActionEventArgs)) #1 /usr/www/users/shopww/shop/engine/Library/Enlight/Event/EventManager.php(214): Enlight_Event_Handler_Default->execute(Object(Enlight_Controller_ActionEventArgs)) #2 /usr/www/users/shopww/shop/engine/Library/Enlight/Controller/Action.php(206): Enlight_Event_EventManager->notify('Enlight_Control...', Object(Enlight_Controller_ActionEventArgs)) #3 /usr/www/users/shopww/shop/engine/Library/Enlight/Controller/Dispatcher/Default.php(478): Enlight_Controller_Action->dispatch('indexAction') #4 /usr/www/users/shopww/shop/engine/Library/Enlight/Controller/Front.php(228): Enlight_Controller_Dispatcher_Default->dispatch(Object(Enlight_Controller_Requ in /usr/www/users/shopww/shop/custom/plugins/C3WmdCustomerGroupDiscount/C3WmdCustomerGroupDiscount.php on line 62