fix send conn nil issue

internal/app/stc/sendstatus/status.go

@@ -75,8 +75,13 @@ func AlarmStatus(exten string, status string) {
 	//check if actived
 	lfshook.NewLogger().Logger.Infof("===AlarmStatus=ext:%s===carr:%x==========pos:%x=========status:%x", exten, protocol.Data[0], protocol.Data[1], protocol.Data[2])
 	if active.Actived {
-		SendToStc(socket.Conn, encoded)
-		SendToStc(socket.Conn8, encoded)
+		if socket.Conn != nil {
+			SendToStc(socket.Conn, encoded)
+		}
+
+		if socket.Conn8 != nil {
+			SendToStc(socket.Conn8, encoded)
+		}
 	}
 }