HBS申请网站没法upload文件

HBS申请网站没法upload文件，不管是upload transcript还是upload essay,总是显示，可是我以前申请其他学校用applyyourself都可以upload文件啊？怎末办啊？

Invalid Access

An error was generated while trying to access the requested page. Please contact technical support and provide the following information:

• Name of the university/institution to which you are applying
• The PIN used to login to the application
• A detailed description of the problem you experienced and the steps you performed in the system to generate the error
• Whether or not your browser is set to allow cookies

总算解决了，这些网站总是出问题，郁闷！