Channel crash without any Error...

Hi,
Channel crash without any error,players can still play inside,yes strange ?
After that all if some player during an logout or he get crash,he can't connect anymor,yes of course channel is down.

So why the hek channel crash without any reason or error and players can still play inside ? i'm really confused right now guys ..:confused:

As far as I know, if you start the server with the .exe files OUTSIDE visual studio, you won't get any errors when it crashes.
When ever I used debugmode (F5) or started it without the debugger IN visual studio (ctrl+F5) it always gave me the error.