问突然停止接收firebase通知

EN

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
    FirebaseApp.configure()
    appCoord.start()
    UNUserNotificationCenter.current().delegate = self
    application.registerForRemoteNotifications()

    let authOptions: UNAuthorizationOptions = [.alert, .badge, .sound]
    UNUserNotificationCenter.current().requestAuthorization(
        options: authOptions,
        completionHandler: {result,error  in print(result,error) })
    return true
}

func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
    InstanceID.instanceID().deleteID{ error in
        Messaging.messaging().setAPNSToken(deviceToken, type: .prod)
        Messaging.messaging().delegate = self
        Messaging.messaging().shouldEstablishDirectChannel = true
    }
}

func messaging(_ messaging: Messaging, didReceiveRegistrationToken fcmToken: String) {
    print("Firebase registration token: \(fcmToken)")
    let dataDict:[String: String] = ["token": fcmToken]
    NotificationCenter.default.post(name: Notification.Name("FCMToken"), object: nil, userInfo: dataDict)
    KeychainProvider.setToken(token: fcmToken)
    print(KeychainProvider.loadToken())
    appCoord.updateToken()
    Messaging.messaging().subscribe(toTopic: "news")
    print("gottoken")
}

func messaging(_ messaging: Messaging, didReceive remoteMessage: MessagingRemoteMessage) {
    appCoord.updateInbox()
    print("msg",remoteMessage)
}

func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable : Any], fetchCompletionHandler completionHandler: @escaping (UIBackgroundFetchResult) -> Void) {
    print("dobio je notifikaciju")
    appCoord.updateInbox()
    Messaging.messaging().appDidReceiveMessage(userInfo)
    completionHandler(UIBackgroundFetchResult.newData)
}

func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse, withCompletionHandler completionHandler: @escaping () -> Void) {
    print("fjyfjdfj--------------------------------------")
    completionHandler()
}

func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification, withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Void) {
    let notificationType = UIApplication.shared.currentUserNotificationSettings?.types
    print("push enabled")
    // custom code to handle push while app is in the foreground
    //            print("Handle push from foreground\(notification.request.content.userInfo)")

    let dict = notification.request.content.userInfo["aps"] as! NSDictionary
    let d : [String : Any] = dict["alert"] as! [String : Any]
    var body : String = d["body"] as! String
    let title : String = d["title"] as! String
    print("Title:\(title) + body:\(body)")
    completionHandler([.alert,.badge,.sound])
}