Error closes my Mindjet MindManager

Hi friends,
My Mindjet MindManager Version is 9. I found some error that closes my Mindjet MindManager.
I can still create or open files on it, but some unknown error forcefully closes my Mindjet MindManager.

Mindjet MindManager 9
MindManager 9 has been encountered a problem and needs to close. We are sorry for the inconvenience
If you were in the middle of something, the information you were working on might be lost.
Please tell Microsoft about this problem
We have created an error report that you can send to us. We will treat this report as confidential and anonymous.
Any help will be greatly appreciated.
Thanks a lot.
