Invalid argument supplied for foreach() //wp-includes/media.php on Mandigo theme

Hello. I am doing some work for a client and am having issues fixing an error that keeps coming up it says on the header when you go into the wordpress dashboard the following:

Invalid argument supplied for foreach() in /data/16/1/14/111/1503926/user/1617919/htdocs/wp-includes/media.php on line 912

And here is the code below for that part of wp-includes/media.php that is showing an error. The code starts at 909 and ends with 921

function get_taxonomies_for_attachments( $output = 'names' ) {
	$taxonomies = array();
	foreach ( get_taxonomies( array(), 'objects' ) as $taxonomy ) {
		foreach ( $taxonomy->object_type as $object_type ) {
			if ( 'attachment' == $object_type || 0 === strpos( $object_type, 'attachment:' ) ) {
				if ( 'names' == $output )
					$taxonomies[] = $taxonomy->name;
				else
					$taxonomies[ $taxonomy->name ] = $taxonomy;
				break;
			}
		}
	}