Fatal Exception: java.lang.IncompatibleClassChangeError
The method 'java.lang.Class java.lang.Object.getClass()' was expected to be of type interface but instead was found to be of type virtual (declaration of 'com.google.android.gms.dynamic.ObjectWrapper' appears in /data/app/com.app.braintris.ab-2/base.apk)
com.google.android.gms.dynamic.ObjectWrapper.unwrap (com.google.android.gms:play-services-basement@@18.0.2:4)

com.google.android.gms.ads.BaseAdView.loadAd (com.google.android.gms:play-services-ads-lite@@21.0.0:5)
io.flutter.plugins.googlemobileads.FlutterBannerAd.load (FlutterBannerAd.java:67)
io.flutter.plugins.googlemobileads.GoogleMobileAdsPlugin.onMethodCall (GoogleMobileAdsPlugin.java:386)
io.flutter.plugin.common.MethodChannel$IncomingMethodCallHandler.onMessage (MethodChannel.java:262)
io.flutter.embedding.engine.dart.DartMessenger.invokeHandler (DartMessenger.java:295)
io.flutter.embedding.engine.dart.DartMessenger.lambda$dispatchMessageToQueue$0 (DartMessenger.java:319)
io.flutter.embedding.engine.dart.DartMessenger.$r8$lambda$TsixYUB5E6FpKhMtCSQVHKE89gQ (DartMessenger.java)
io.flutter.embedding.engine.dart.DartMessenger$$InternalSyntheticLambda$0$ceffc6bae7d364cb48afaf1aaebd60bf9050360d0efb9035ebc54f0851df0a05$0.run (DartMessenger.java)

every 30 seconds I call this code

                                 _banner?.dispose();
				_banner = BannerAd(
					adUnitId: AdsManager.idGoogleBanner,
					size: AdSize.banner,
					request: AdRequest(),
					listener: BannerAdListener(
						onAdLoaded: (ad) {
							_ad?.dispose();
							_ad = ad;
							reloadWidget();
						},
						onAdFailedToLoad: (ad, e) {
							_ad?.dispose();
							_ad = null;
							reloadWidget();
						}
					),
				);
				_banner.load();