Android : Admob banner ads not working properly on Android

I am getting message in logcat while clicking on ADMOB-BANNER ADS

Could not get info for ad overlay

Hi I have integrate admob, and following it's xml code

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:ads="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

    <com.aviary.android.feather.library.services.drag.DragLayer
        android:id="@+id/dragLayer"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_above="@+id/adView" >

        <RelativeLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:background="?attr/aviaryBackgroundColor"
            android:orientation="vertical" >

            <!-- main navbar ( title, apply and done buttons ) -->

            <include
                android:id="@+id/aviary_navbar"
                layout="@layout/aviary_navbar" >
            </include>

            <!-- main content view -->

            <RelativeLayout
                android:id="@+id/main_content"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:layout_above="@+id/aviary_bottombar"
                android:layout_below="@id/aviary_navbar"
                android:padding="?attr/aviaryMainImagePadding" >

                <!-- optional image view container -->

                <RelativeLayout
                    android:id="@+id/drawing_view_container"
                    android:layout_width="match_parent"
                    android:layout_height="match_parent" >
                </RelativeLayout>

                <!-- main image view -->

                <com.aviary.android.feather.sdk.widget.AviaryImageViewUndoRedo
                    android:id="@+id/image"
                    android:layout_width="match_parent"
                    android:layout_height="match_parent"
                    android:visibility="invisible" />

                <!-- main loader, visible while loading the image at start -->

                <include
                    android:id="@+id/image_loading_view"
                    layout="@layout/aviary_main_loader" >
                </include>
            </RelativeLayout>

            <!-- bottom bar (tools, panels) -->

            <include
                android:id="@+id/aviary_bottombar"
                android:layout_width="match_parent"
                android:layout_height="?attr/aviaryBottomBarHeight"
                android:layout_alignParentBottom="true"
                layout="@layout/aviary_bottombar" >
            </include>

            <!-- popup container dialog -->

            <RelativeLayout
                android:id="@+id/feather_dialogs_container"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:layout_below="@+id/aviary_navbar"
                android:visibility="invisible" >
            </RelativeLayout>

            <!-- hidden surface view -->

            <SurfaceView
                android:layout_width="0dp"
                android:layout_height="0dp"
                android:visibility="invisible" >
            </SurfaceView>
        </RelativeLayout>
    </com.aviary.android.feather.library.services.drag.DragLayer>

    <com.google.android.gms.ads.AdView
        android:id="@+id/adView"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        ads:adSize="SMART_BANNER"
        ads:adUnitId="@string/banner_ad_unit_id" >
    </com.google.android.gms.ads.AdView>

</RelativeLayout>

It's Java code

AdView mAdView = (AdView) findViewById(R.id.adView);
AdRequest adRequest = new AdRequest.Builder().build();
mAdView.loadAd(adRequest);

It's menifest file

<application>
        <meta-data
            android:name="com.google.android.gms.version"
            android:value="@integer/google_play_services_version" />
        <activity
            android:name="com.google.android.gms.ads.AdActivity"
            android:configChanges="keyboard|keyboardHidden|orientation|screenLayout|uiMode|screenSize|smallestScreenSize"
            android:theme="@android:style/Theme.Translucent" />
    </application>

But whenever I click on banner ads, it's showing me click response but not transferring to play store or browswer