protect against errant non-string status_id

social.php

@@ -1674,11 +1674,11 @@ public function comment($comment, array $args = array(), $depth = 0) {
 		// set Social Items for Social comments
 		if (!in_array($comment->comment_type, $ignored_types)) {
 			$status_id = get_comment_meta($comment->comment_ID, 'social_status_id', true);
-			if (!empty($status_id)) {
+			if ($status_id && is_string($status_id)) {
 				$status_url = $service->status_url(get_comment_author(), $status_id);
 			}
 			// Social items?
-			if (!empty($comment->social_items)) {
+			if (!empty($comment->social_items) && isset($status_url)) {
 				if (is_object($service) && method_exists($service, 'key')) {
 					$avatar_size = apply_filters('social_items_comment_avatar_size', array(
 						'width' => 18,