默认方式很不习惯, 干脆改成最近位置算了...

 /components/com_jd-wiki/inc/common.php

166行:

  $crumbs = isset($_SESSION[$conf['title']]['bc']);

替换为:

  if (isset($_SESSION[$conf['title']]['bc'])) {
      $crumbs = $_SESSION[$conf['title']]['bc'];
  }

顺便将

/components/com_jd-wiki/inc/lang/zh/lang.php里的文字也改一下.