Problem trying to exit the server.

[dunabird 24]

I've playing this game for 2/3 weeks and is working fine till today...

 

Now when i'm exit a server, i got the "waiting a moment" screen of DayZ , but windows says "DayZ stop working" and close the program.

And when i open the game again, i lose my char, except if ill go to the same server that i was before.

Someone had this issue? Know how to fix?