Patran突然用不了了

我安装的事Patran2010，以前可以用，大概一个月没用了，今天突然打开的时候弹出一个message的对话框，You have requested to run MSC.Patran on a Windows 20130604-1604(00242306c72a) (Windows 5.1 (Build 2600: Service Pack 3)). There are no version 2010.0215 licenses installed to satisfy this request. License File: C:\Documents and Settings\Administrator\桌面\license.dat Please request your systems administrator to review the installation procedures for MSC.Software products on your system and/or contact your Support Representative for further assistance.
请问下该怎么解决~~~