Fatal error: Uncaught Symfony\Component\Debug\Exception\FatalThrowableError: Type error: Return value of AppBundle\Controller\WordpressController::getPageWrapper() must be of the type string, null returned in /var/www/dxomark/src/AppBundle/Controller/WordpressController.php:83 Stack trace: #0 /var/www/dxomark/src/AppBundle/Controller/WordpressController.php(88): AppBundle\Controller\WordpressController->getPageWrapper('cn') #1 /var/www/dxomark/src/AppBundle/Controller/WordpressController.php(106): AppBundle\Controller\WordpressController->getHeader('cn') #2 /var/www/dxomark/src/AppBundle/Controller/WordpressController.php(158): AppBundle\Controller\WordpressController->importHeaderHTML('cn') #3 /var/www/dxomark/vendor/symfony/symfony/src/Symfony/Component/HttpKernel/HttpKernel.php(151): AppBundle\Controller\WordpressController->headMetaTagsAction(Object(Symfony\Component\HttpFoundation\Request)) #4 /var/www/dxomark/vendor/symfony/symfony/src/Symfony/Component/HttpKernel/HttpKernel.php(68): Symfony\Component\HttpKernel\Htt in /var/www/dxomark/src/AppBundle/Controller/WordpressController.php on line 83