iOS ADMOB Reward based video ad failed to load

until today I was able to show the reward video, but now the video doesn’t appear, a log of admod alert me to install the new

ADMOB SDK 7.23.0

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  • QLPreviewController's view
  • Now with the new ADMOB SDK the reward video fails to load.

    with the test id, seems to work:

    GADRewardBasedVideoAd.sharedInstance().load(GADRequest(),withAdUnitID: "ca-app-pub-3940256099942544/1712485313")
    

    if I change with my reference ID, the video fails to load.
    I’ve also added in AppDelegate:

    //ADMOB
    import GoogleMobileAds
    
    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
    
            //ADMOB
            GADMobileAds.configure(withApplicationID: AppConfiguration.AdMob.ID_APP)
            return true
    }