If my French is good enough then that message is just the standard Windows message for when an application crashes.
(K2.net has encountered a problem and must close. We are sorry for any inconvenience. (I’m paraphrasing!)
Any unsaved work that you were working on will have been lost.
Tell Microsoft about this problem.
We will create an error report that you can send us. We will treat this report as confidential and anonymous.
The buttons at the bottom are just Debug, send report and don’t send, like in the English version.)
Unfortunately the translation is all I can add to help, but now we have established that it is the same error message maybe someone will be able to provide you with a solution.
Hope this helps
Matt