From 7f97e52ce69e2d13bc09a7a328b73f21caa7b063 Mon Sep 17 00:00:00 2001
From: zenggang <zenggang@easycorp.ltd>
Date: Thu, 19 Aug 2021 12:17:43 +0800
Subject: [PATCH] * Finish bug #13103

---
 module/story/view/track.html.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/module/story/view/track.html.php b/module/story/view/track.html.php
index b5a5320a3e..e0fa26f1a6 100644
--- a/module/story/view/track.html.php
+++ b/module/story/view/track.html.php
@@ -70,7 +70,7 @@
             <?php foreach($track as $storyID => $story):?>
             <?php if($i != 1) echo '<tr>';?>
               <td style='padding-left: 10px;'>
-                <?php if($story->parent > 0):?><span class="label label-badge label-light" title="<?php echo $this->lang->story->children;?>"><?php echo $this->lang->story->childrenAB;?></span><?php endif;?>
+                <?php if(isset($story->parent) and $story->parent > 0):?><span class="label label-badge label-light" title="<?php echo $this->lang->story->children;?>"><?php echo $this->lang->story->childrenAB;?></span><?php endif;?>
                 <?php echo html::a($this->createLink($module, 'view', "storyID=$storyID"), $story->title, '',"title='$story->title' data-app='$openApp'");?>
               </td>
               <td>