xml for webview issue

<?xml version="1.0" encoding="utf-8"?>
<androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".Lesson">

    <com.google.android.material.appbar.AppBarLayout
        android:id="@+id/appBarLayout"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:isScrollContainer="true"
        android:scrollbars="vertical"
        android:theme="@style/Theme.PartTimePilot.AppBarOverlay"
        android:verticalScrollbarPosition="right">

        <TextView
            android:id="@+id/textView2"
            android:layout_width="match_parent"
            android:layout_height="64dp"
            android:fontFamily="@font/reem_kufi"
            android:gravity="center"
            android:isScrollContainer="false"
            android:linksClickable="true"
            android:text="Winds &amp; Temperatures Aloft"
            android:textAlignment="center"
            android:textColor="#FFFFFF"
            android:textSize="24sp"
            android:textStyle="bold" />

        <com.pierfrancescosoffritti.androidyoutubeplayer.core.player.views.YouTubePlayerView
            android:id="@+id/videoView"
            android:layout_width="match_parent"
            android:layout_height="wrap_content" />

        <WebView
            android:id="@+id/lessonContentView"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:fadeScrollbars="true"
            android:isScrollContainer="true"
            android:nestedScrollingEnabled="true"
            android:overScrollMode="ifContentScrolls"
            android:persistentDrawingCache="scrolling"
            android:scrollbars="vertical"
            app:layout_behavior="@string/appbar_scrolling_view_behavior"
            app:layout_scrollFlags="scroll" />

    </com.google.android.material.appbar.AppBarLayout>

</androidx.coordinatorlayout.widget.CoordinatorLayout>