Fatal error: Uncaught exception 'Symfony\Component\DependencyInjection\Exception\InvalidArgumentException' with message 'The service definition "" does not exist.' in /home/vestniks/public_html/phpbb/vendor/symfony/dependency-injection/Symfony/Component/DependencyInjection/ContainerBuilder.php:871 Stack trace: #0 /home/vestniks/public_html/phpbb/vendor/symfony/dependency-injection/Symfony/Component/DependencyInjection/ContainerBuilder.php(478): Symfony\Component\DependencyInjection\ContainerBuilder->getDefinition('') #1 /home/vestniks/public_html/phpbb/phpbb/captcha/factory.php(48): Symfony\Component\DependencyInjection\ContainerBuilder->get('') #2 /home/vestniks/public_html/phpbb/posting.php(243): phpbb\captcha\factory->get_instance('') #3 {main} thrown in /home/vestniks/public_html/phpbb/vendor/symfony/dependency-injection/Symfony/Component/DependencyInjection/ContainerBuilder.php on line 871