fix bug

pkg/ruleEngine/mailbox.go

@@ -207,8 +207,8 @@ func (m *MailBox) BroadcastChildren(msg protocol.ActorMsg) error {
 
 func (m *MailBox) destroy() error {
 	return m.dispatcher.Submit(func() {
-		m.highPriorityMessages.Close()
-		m.normalPriorityMessages.Close()
+		//m.highPriorityMessages.Close()
+		//m.normalPriorityMessages.Close()
 		m.setReadyStat(NOTREADY)
 		if err := m.actor.Destroy(); err != nil {
 			server.Log.Warnf("Failed to destroy actor :%s, err :%s", m.id, err.Error())