TypeError thrown

Argument 1 passed to The7_Archive_Shortcodes_Handler::add_hooks() must be an instance of DT_Shortcode_With_Inline_Css or null, instance of DT_Shortcode_Albums_Jgrid given, called in /customers/c/4/9/starwarsarchives.com/httpd.www/wp-content/themes/dt-the7/inc/mods/archive-ext/class-the7-archive-shortcodes-manager.php on line 104