static void UnhandledExceptionTrapper(object sender, UnhandledExceptionEventArgs e)
{
ConsoleColor colorBefore = Console.ForegroundColor;
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine(e.ExceptionObject.ToString());
Console.ForegroundColor = colorBefore;
_chatServer1?.ShutDown();
wh.Set();
Environment.Exit(1);
}