Fatal error: Uncaught Error: Call to a member function get() on null in /var/www/html/classes/controller/Controller.php:780 Stack trace: #0 /var/www/html/classes/controller/FrontController.php(570): ControllerCore->get('prestashop.core...') #1 /var/www/html/classes/controller/FrontController.php(554): FrontControllerCore->buildFrontEndObject(Array) #2 /var/www/html/classes/controller/FrontController.php(585): FrontControllerCore->assignGeneralPurposeVariables() #3 /var/www/html/controllers/front/listing/CategoryController.php(171): FrontControllerCore->initContent() #4 /var/www/html/classes/controller/Controller.php(328): CategoryControllerCore->initContent() #5 /var/www/html/classes/Dispatcher.php(484): ControllerCore->run() #6 /var/www/html/index.php(78): DispatcherCore->dispatch() #7 {main} thrown in /var/www/html/classes/controller/Controller.php on line 780