fatal error … line 354

i am trying to view full posts at http://restlessenergy.org
and when I click on any of them, i.e.
http://restlessenergy.org/la-isla-del-nido-private-island-review/
I get fatal error
Fatal error: Call to undefined function get_queried_object() in /home/restles1/public_html/wp-content/plugins/wordpress-seo/frontend/class-frontend.php on line 354