Fatal error: Uncaught Error: Call to a member function getCountries() on null in /app/src/EventListener/LocaleListener.php:51 Stack trace: #0 /app/vendor/symfony/event-dispatcher/EventDispatcher.php(260): App\EventListener\LocaleListener->onKernelRequest(Object(Symfony\Component\HttpKernel\Event\RequestEvent), 'kernel.request', Object(Symfony\Component\EventDispatcher\EventDispatcher)) #1 /app/vendor/symfony/event-dispatcher/EventDispatcher.php(220): Symfony\Component\EventDispatcher\EventDispatcher::Symfony\Component\EventDispatcher\{closure}(Object(Symfony\Component\HttpKernel\Event\RequestEvent), 'kernel.request', Object(Symfony\Component\EventDispatcher\EventDispatcher)) #2 /app/vendor/symfony/event-dispatcher/EventDispatcher.php(56): Symfony\Component\EventDispatcher\EventDispatcher->callListeners(Array, 'kernel.request', Object(Symfony\Component\HttpKernel\Event\RequestEvent)) #3 /app/vendor/symfony/http-kernel/HttpKernel.php(157): Symfony\Component\EventDispatcher\EventDispatcher->dispatch(Object(Symfony\Component\HttpKernel\Event\RequestEvent), 'kernel.request') #4 /app/vendor/symfony/http-kernel/HttpKernel.php(76): Symfony\Component\HttpKernel\HttpKernel->handleRaw(Object(Symfony\Component\HttpFoundation\Request), 1) #5 /app/vendor/symfony/http-kernel/Kernel.php(208): Symfony\Component\HttpKernel\HttpKernel->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #6 /app/public/index.php(20): Symfony\Component\HttpKernel\Kernel->handle(Object(Symfony\Component\HttpFoundation\Request)) #7 {main} thrown in /app/src/EventListener/LocaleListener.php on line 51