I try to connect adMod to the application, I write that I can not find the class “” how to fix it?

I/art: Rejecting re-init on previously-failed class java.lang.Class<uO>: java.lang.NoClassDefFoundError: Failed resolution of: Landroid/webkit/TracingController; at java.lang.Class java.lang.Class.classForName!(java.lang.String, boolean, java.lang.ClassLoader) (Class.java:-2) at java.lang.Class java.lang.Class.forName(java.lang.String, boolean, java.lang.ClassLoader) (Class.java:400) at java.lang.Class android.webkit.WebViewFactory.getProviderClass() (WebViewFactory.java:349) at android.webkit.WebViewFactoryProvider android.webkit.WebViewFactory.getProvider() (WebViewFactory.java:194) at android.webkit.WebViewFactoryProvider android.webkit.WebView.getFactory() (WebView.java:2325) at void android.webkit.WebView.ensureProviderCreated() (WebView.java:2320) at void android.webkit.WebView.setOverScrollMode(int) (WebView.java:2379) at void android.view.View.<init>(android.content.Context) (View.java:4020) at void android.view.View.<init>(android.content.Context, android.util.AttributeSet, int, int) (View.java:4137) at void android.view.ViewGroup.<init>(android.content.Context, android.util.AttributeSet, int, int) (ViewGroup.java:578) at void android.widget.AbsoluteLayout.<init>(android.content.Context, android.util.AttributeSet, int, int) (AbsoluteLayout.java:55) at void android.webkit.WebView.<init>(android.content.Context, android.util.AttributeSet, int, int, java.util.Map, boolean) (WebView.java:627) at void android.webkit.WebView.<init>(android.content.Context, android.util.AttributeSet, int, int) (WebView.java:572) at void android.webkit.WebView.<init>(android.content.Context, android.util.AttributeSet, int) (WebView.java:555) at void android.webkit.WebView.<init>(android.content.Context, android.util.AttributeSet) (WebView.java:542) at void android.webkit.WebView.<init>(android.content.Context) (WebView.java:532) at void com.google.android.gms.ads.internal.webview.v.<init>(com.google.android.gms.ads.internal.webview.au, com.google.android.gms.ads.internal.webview.av, java.lang.String, boolean, mw, com.google.android.gms.ads.internal.util.client.p, com.google.android.gms.ads.internal.csi.l, com.google.android.gms.ads.internal.bo, com.google.android.gms.ads.internal.v, com.google.android.gms.ads.internal.clearcut.a) (:com.google.android.gms.dynamite_adsdynamite@14366051@14.3.66 (040408-213742215):1) at java.lang.Object com.google.android.gms.ads.internal.webview.q.call() ((null):4) at java.lang.Object com.google.android.gms.ads.internal.util.bp.a(java.util.concurrent.Callable) (:com.google.android.gms.dynamite_adsdynamite@14366051@14.3.66 (040408-213742215):19) at com.google.android.gms.ads.internal.webview.i com.google.android.gms.ads.internal.webview.oa(android.content.Context, com.google.android.gms.ads.internal.webview.av, java.lang.String, boolean, boolean, mw, com.google.android.gms.ads.internal.util.client.p, com.google.android.gms.ads.internal.csi.l, com.google.android.gms.ads.internal.bo, com.google.android.gms.ads.internal.v, com.google.android.gms.ads.internal.clearcut.a) (:com.google.android.gms.dynamite_adsdynamite@14366051@14.3.66 (040408-213742215):7) at void com.google.android.gms.ads.internal.js.p.<init>(android.content.Context, com.google.android.gms.ads.internal.util.client.p, mw) (:com.google.android.gms.dynamite_adsdynamite@14366051@14.3.66 (040408-213742215):5) at void com.google.android.gms.ads.internal.js.y.run() ((null):17) at void com.google.android.gms.ads.internal.util.future.ad.execute(java.lang.Runnable) (:com.google.android.gms.dynamite_adsdynamite@14366051@14.3.66 (040408-213742215):4) at com.google.android.gms.ads.internal.js.an com.google.android.gms.ads.internal.js.xa(mw) (:com.google.android.gms.dynamite_adsdynamite@14366051@14.3.66 (040408-213742215):13) at com.google.android.gms.ads.internal.js.aj com.google.android.gms.ads.internal.js.xa() (:com.google.android.gms.dynamite_adsdynamite@14366051@14.3.66 (040408-213742215):26) at com.google.android.gms.ads.internal.util.future.x com.google.android.gms.ads.internal.js.function.bb(java.lang.Object) (:com.google.android.gms.dynamite_adsdynamite@14366051@14.3.66 (040408-213742215):7) at void com.google.android.gms.ads.internal.ac.a(android.content.Context, com.google.android.gms.ads.internal.util.client.p, boolean, com.google.android.gms.ads.internal.state.e, java.lang.String, java.lang.String, java.lang.Runnable) (:com.google.android.gms.dynamite_adsdynamite@14366051@14.3.66 (040408-213742215):35) at void com.google.android.gms.ads.internal.ac.a(android.content.Context, com.google.android.gms.ads.internal.util.client.p, java.lang.String, java.lang.Runnable) (:com.google.android.gms.dynamite_adsdynamite@14366051@14.3.66 (040408-213742215):4) at void com.google.android.gms.ads.nonagon.ab.a(java.lang.String, xg) (:com.google.android.gms.dynamite_adsdynamite@14366051@14.3.66 (040408-213742215):53) at boolean com.google.android.gms.ads.internal.client.be.a(int, android.os.Parcel, android.os.Parcel) (:com.google.android.gms.dynamite_adsdynamite@14366051@14.3.66 (040408-213742215):7) at boolean ob.onTransact(int, android.os.Parcel, android.os.Parcel, int) (:com.google.android.gms.dynamite_adsdynamite@14366051@14.3.66 (040408-213742215):4) at boolean android.os.Binder.transact(int, android.os.Parcel, android.os.Parcel, int) (Binder.java:499) at void com.google.android.gms.internal.ads.zzem.zza(int, android.os.Parcel) ((null):20) at void com.google.android.gms.internal.ads.zzln.zza(java.lang.String, com.google.android.gms.dynamic.IObjectWrapper) ((null):26) at void com.google.android.gms.internal.ads.zzml.zza(android.content.Context, java.lang.String, com.google.android.gms.internal.ads.zzmo) ((null):26) at void com.google.android.gms.ads.MobileAds.initialize(android.content.Context, java.lang.String, com.google.android.gms.ads.MobileAds$Settings) ((null):5) at void com.google.android.gms.ads.MobileAds.initialize(android.content.Context, java.lang.String) ((null):1) at void com.example.six.myproject.MenuActivity.onCreate(android.os.Bundle) (MenuActivity.java:171) at void android.app.Activity.performCreate(android.os.Bundle) (Activity.java:6915) at void android.app.Instrumentation.callActivityOnCreate(android.app.Activity, android.os.Bundle) (Instrumentation.java:1123) at android.app.Activity android.app.ActivityThread.performLaunchActivity(android.app.ActivityThread$ActivityClientRecord, android.content.Intent) (ActivityThread.java:2746) at void android.app.ActivityThread.handleLaunchActivity(android.app.ActivityThread$ActivityClientRecord, android.content.Intent, java.lang.String) (ActivityThread.java:2864) at void android.app.ActivityThread.-wrap12(android.app.ActivityThread, android.app.ActivityThread$ActivityClientRecord, android.content.Intent, java.lang.String) (ActivityThread.java:-1) at void android.app.ActivityThread$H.handleMessage(android.os.Message) (ActivityThread.java:1567) at void android.os.Handler.dispatchMessage(android.os.Message) (Handler.java:105) at void android.os.Looper.loop() (Looper.java:156) at void android.app.ActivityThread.main(java.lang.String[]) (ActivityThread.java:6523) at java.lang.Object java.lang.reflect.Method.invoke!(java.lang.Object, java.lang.Object[]) (Method.java:-2) at void com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run() (ZygoteInit.java:942) at void com.android.internal.os.ZygoteInit.main(java.lang.String[]) (ZygoteInit.java:832) Caused by: java.lang.ClassNotFoundException: Didn't find class "android.webkit.TracingController" on path: DexPathList[[zip file "/data/app/com.android.chrome-2/base.apk"],nativeLibraryDirectories=[/data/app/com.android.chrome-2/lib/arm64, /data/app/com.android.chrome-2/base.apk!/lib/arm64-v8a, /system/lib64, /vendor/lib64, /system/vendor/lib64, /product/lib64]] at java.lang.Class dalvik.system.BaseDexClassLoader.findClass(java.lang.String) (BaseDexClassLoader.java:56) 

What library to add so that I have the right class? I do everything according to the instructions. But the library is not enough ((And writes an error onRewardedVideoAdFailedToLoad 0