Causes fatal Error – Latest WordPress Version

When I activate the plugin, I get the followign error:

An error of type E_ERROR was caused in line 364 of the file /var/www/clients/client1/web61/web/wp-content/plugins/amp-story/vafpress/classes/metabox.php. Error message: Uncaught Error: Call to undefined method VP_Metabox::is_parent_multi() in /var/www/clients/client1/web61/web/wp-content/plugins/amp-story/vafpress/classes/metabox.php:364