Fatal error: Uncaught Symfony\Component\DependencyInjection\Exception\ServiceNotFoundException: You have requested a non-existent service "PrestaShop\Module\PrestashopCheckout\Validator\FrontControllerValidator". in /var/www/html/vendor/symfony/dependency-injection/Container.php:263 Stack trace: #0 /var/www/html/vendor/symfony/dependency-injection/Container.php(211): Symfony\Component\DependencyInjection\Container::make(Object(Ps_checkout9433FrontContainer), 'PrestaShop\\Modu...', 1) #1 /var/www/html/modules/ps_checkout/vendor/prestashop/module-lib-service-container/src/DependencyInjection/ServiceContainer.php(64): Symfony\Component\DependencyInjection\Container->get('PrestaShop\\Modu...') #2 /var/www/html/modules/ps_checkout/ps_checkout.php(1340): PrestaShop\ModuleLibServiceContainer\DependencyInjection\ServiceContainer->getService('PrestaShop\\Modu...') #3 /var/www/html/modules/ps_checkout/ps_checkout.php(770): Ps_checkout->getService('PrestaShop\\Modu...') #4 /var/www/html/classes/Hook.php(1237): Ps_checkout->hookActionFrontControllerSetMedia(Array) #5 /var/www/html/classes/Hook.php(454): HookCore::coreCallHook(Object(Ps_checkout), 'hookActionFront...', Array) #6 /var/www/html/classes/Hook.php(1128): HookCore::callHookOn(Object(Ps_checkout), 'actionFrontCont...', Array) #7 /var/www/html/classes/controller/FrontController.php(957): HookCore::exec('actionFrontCont...', Array) #8 /var/www/html/classes/controller/Controller.php(313): FrontControllerCore->setMedia() #9 /var/www/html/classes/Dispatcher.php(484): ControllerCore->run() #10 /var/www/html/index.php(86): DispatcherCore->dispatch() #11 {main} Next PrestaShop\PrestaShop\Core\Exception\CoreException: You have requested a non-existent service "PrestaShop\Module\PrestashopCheckout\Validator\FrontControllerValidator". in /var/www/html/classes/Hook.php:476 Stack trace: #0 /var/www/html/classes/Hook.php(1128): HookCore::callHookOn(Object(Ps_checkout), 'actionFrontCont...', Array) #1 /var/www/html/classes/controller/FrontController.php(957): HookCore::exec('actionFrontCont...', Array) #2 /var/www/html/classes/controller/Controller.php(313): FrontControllerCore->setMedia() #3 /var/www/html/classes/Dispatcher.php(484): ControllerCore->run() #4 /var/www/html/index.php(86): DispatcherCore->dispatch() #5 {main} thrown in /var/www/html/classes/Hook.php on line 476