L 01/21/2013 - 22:34:56: FATAL ERROR (shutting down): MSG_ONE or MSG_ONE_UNRELIABLE with no target entity
L 01/23/2013 - 16:46:39: FATAL ERROR (shutting down): MSG_ONE or MSG_ONE_UNRELIABLE with no target entity
By what can it be caused and why? Whats the reason?