Fatal error: Uncaught Symfony\Component\Debug\Exception\FatalThrowableError: Call to a member function getSlug() on null in /app/src/AlvaAmco/RootBundle/Controller/ProductsController.php:161 Stack trace: #0 [internal function]: AlvaAmco\RootBundle\Controller\ProductsController->extendedInformationAction('prosacea') #1 /app/vendor/symfony/symfony/src/Symfony/Component/HttpKernel/HttpKernel.php(153): call_user_func_array(Array, Array) #2 /app/vendor/symfony/symfony/src/Symfony/Component/HttpKernel/HttpKernel.php(68): Symfony\Component\HttpKernel\HttpKernel->handleRaw(Object(Symfony\Component\HttpFoundation\Request), 1) #3 /app/vendor/symfony/symfony/src/Symfony/Component/HttpKernel/Kernel.php(169): Symfony\Component\HttpKernel\HttpKernel->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #4 /app/vendor/symfony/symfony/src/Symfony/Component/HttpKernel/HttpCache/HttpCache.php(471): Symfony\Component\HttpKernel\Kernel->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #5 /app/vendor/symfony/symf in /app/app/Resources/views/base.html.twig on line 63