ID:1530817
 
First, I have to say that I have personally uninstalled and re-installed the entire Byond client, to see if that would fix the bug.

It seems, that while I am hosting the game "Dragon Universe" (No intents on advertising) and either I or my head admin (Grizzy6) Gets attacked, (I believe it's just when we are hit back o.o) the entire client itself crashes. Not the game, but the Dream Daemon client, which also forcefully closes everyone's client or connection.
It seems, that even if I happen to re-download the hosting files, that it does the same thing which is really quite frustrating, I'm going to make an attempt to try a different host file (different version) to see if that fixes it, if it happens to not fix it I will gladly update this.
It sounds like something might be up with your code. Check for infinite recursions, and see if that helps.