Fatal error: Uncaught Error: Interface 'Symfony\Component\Yaml\Exception\ExceptionInterface' not found in /home/mpolsk5/public_html/seocomo/craft/vendor/symfony/yaml/Exception/RuntimeException.php:19 Stack trace: #0 {main} thrown in /home/mpolsk5/public_html/seocomo/craft/vendor/symfony/yaml/Exception/RuntimeException.php on line 19