Android Question FirebaseAdMob

Sub BannerAd_FailedToReceiveAd (ErrorCode As String)
    ToastMessageShow("failed: " & ErrorCode,False)
End Sub

'This code will be applied to the manifest file during compilation.
'You do not need to modify it in most cases.
'See this link for for more information: http://www.b4x.com/forum/showthread.php?p=78136
AddManifestText(
<uses-sdk android:minSdkVersion="14" android:targetSdkVersion="28"/>
<supports-screens android:largeScreens="true"
    android:normalScreens="true"
    android:smallScreens="true"
    android:anyDensity="true"/>)
SetApplicationAttribute(android:icon, "@drawable/icon")
SetApplicationAttribute(android:label, "$LABEL$")
'End of default text.
AddApplicationText(<activity android:name="anywheresoftware.b4a.objects.preferenceactivity"/>)
AddManifestText(<uses-feature android:name="android.hardware.location.gps"/>)
AddApplicationText(<meta-data
    android:name="com.google.android.gms.version"
    android:value="@integer/google_play_services_version" />)
AddPermission(android.permission.READ_PHONE_STATE)
AddPermission(android.permission.CALL_PHONE)
AddPermission(android.permission.ACCESS_COARSE_LOCATION)
CreateResourceFromFile(Macro, FirebaseAnalytics.GooglePlayBase)
CreateResourceFromFile(Macro, FirebaseAnalytics.Firebase)
CreateResourceFromFile(Macro, FirebaseNotifications.FirebaseNotifications)
CreateResourceFromFile(Macro, FirebaseAnalytics.FirebaseAnalytics)
CreateResourceFromFile(Macro, FirebaseAdMob.FirebaseAds)
CreateResourceFromFile(Macro, FirebaseAuth.FirebaseAuth)
'************ Firebase Ads ************
AddApplicationText(
  <activity
  android:name="com.google.android.gms.ads.AdActivity"
  android:configChanges="keyboard|keyboardHidden|orientation|screenLayout|uiMode|screenSize|smallestScreenSize"
  android:theme="@android:style/Theme.Translucent" />
  <activity android:name="com.google.android.gms.ads.purchase.InAppPurchaseActivity"
  android:theme="@style/Theme.IAPTheme"/>
)
'************ Firebase Ads (end) ************
'************ Firebase Base ************
CreateResourceFromFile("google-services", "google-services.json")
AddPermission(android.permission.ACCESS_NETWORK_STATE)
AddPermission(android.permission.INTERNET)
AddPermission(android.permission.WAKE_LOCK)
AddPermission(com.google.android.c2dm.permission.RECEIVE)
AddPermission(${applicationId}.permission.C2D_MESSAGE)
AddPermission(com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE)
AddManifestText( <permission android:name="${applicationId}.permission.C2D_MESSAGE"
  android:protectionLevel="signature" />)
AddApplicationText(
 <receiver
            android:name="com.google.android.gms.measurement.AppMeasurementReceiver"
            android:enabled="true"
            android:exported="false" >
        </receiver>

  <service
            android:name="com.google.android.gms.measurement.AppMeasurementService"
            android:enabled="true"
            android:exported="false" />
        
 <receiver
            android:name="com.google.android.gms.measurement.AppMeasurementInstallReferrerReceiver"
            android:enabled="true"
            android:exported="true"
            android:permission="android.permission.INSTALL_PACKAGES" >
            <intent-filter>
                <action android:name="com.android.vending.INSTALL_REFERRER" />
            </intent-filter>
</receiver>
<service
            android:name="com.google.android.gms.measurement.AppMeasurementJobService"
            android:enabled="true"
            android:exported="false"
            android:permission="android.permission.BIND_JOB_SERVICE" />

 <service android:name="com.google.firebase.components.ComponentDiscoveryService" >
            <meta-data
                android:name="com.google.firebase.components:com.google.firebase.analytics.connector.internal.AnalyticsConnectorRegistrar"
                android:value="com.google.firebase.components.ComponentRegistrar" />
            <meta-data
                android:name="com.google.firebase.components:com.google.firebase.iid.Registrar"
                android:value="com.google.firebase.components.ComponentRegistrar" />
             <meta-data
                android:name="com.google.firebase.components:com.google.firebase.auth.FirebaseAuthRegistrar"
                android:value="com.google.firebase.components.ComponentRegistrar" />
</service>
   <provider
  android:authorities="${applicationId}.firebaseinitprovider"
  android:name="com.google.firebase.provider.FirebaseInitProvider"
  android:exported="false"
  android:initOrder="100" />
 
   <receiver
  android:name="com.google.firebase.iid.FirebaseInstanceIdReceiver"
  android:exported="true"
  android:permission="com.google.android.c2dm.permission.SEND" >
  <intent-filter>
  <action android:name="com.google.android.c2dm.intent.RECEIVE" />
  <action android:name="com.google.android.c2dm.intent.REGISTRATION" />
  <category android:name="${applicationId}" />
  </intent-filter>
  </receiver>
    <receiver
  android:name="com.google.firebase.iid.FirebaseInstanceIdInternalReceiver"
  android:exported="false" />


  <service
  android:name="com.google.firebase.iid.FirebaseInstanceIdService"
  android:exported="true">
  <intent-filter android:priority="-500">
  <action android:name="com.google.firebase.INSTANCE_ID_EVENT" />
  </intent-filter>
  </service>
)

'************ Firebase Base (end) ************

Sub LoadAd
    BannerAd.Initialize2("BannerAd", "ca-app-pub-9301620xxxxxxxxxx/8543266512", BannerAd.SIZE_SMART_BANNER)
    BannerAd.LoadAdWithTestDevice("CAD8007B065E0B86EF3C52DFD5558E21")
    Dim height As Int
   If GetDeviceLayoutValues.ApproximateScreenSize < 6 Then
    'phones
    If 100%x > 100%y Then height = 32dip Else height = 50dip
   Else
    'tablets
    height = 90dip
   End If
   Activity.AddView(BannerAd, 0dip, 100%y - height, 100%x, height)
    'Activity.AddView(BannerAd, 0, 0,  320dip, 50dip)
   'BannerAd.LoadAd
End Sub