iOS Question Size of iAd Banner adds

ad.Initialize("ad", "ca-app-pub-126751111111/111111", Page1, ad.SIZE_BANNER)
Page1.RootPanel.AddView(ad, 0, 0, Page1.RootPanel.Width, 60) 'add an ad at the top of the screen

Sub Process_Globals
    'These global variables will be declared once when the application starts.
    'Public variables can be accessed from all modules.
    Public App As Application
    Public NavControl As NavigationController
    Private Page1 As Page
  
    Private AdView1 As AdView

    Private Button1 As Button
    Private TextField1 As TextField
    Private TextView1 As TextView
End Sub

Private Sub Application_Start (Nav As NavigationController)
    'SetDebugAutoFlushLogs(True) 'Uncomment if program crashes before all logs are printed.
    NavControl = Nav
    Page1.Initialize("Page1")
    Page1.RootPanel.LoadLayout("Prog2")
    Page1.Title = "Factor Tree Creator - Free"
    Page1.RootPanel.Color = Colors.White
    NavControl.ShowPage(Page1)
  
End Sub

Private Sub Page1_Resize(Width As Int, Height As Int)
    TextView1.Height= Height - TextView1.top - 10dip
    AdView1.Initialize("Ad", "ca-app-pub-6456812152893790/3462421222", Page1, AdView1.SIZE_BANNER)
    Page1.RootPanel.AddView(AdView1, 0, 0, Page1.RootPanel.Width, 50)
    AdView1.LoadAd
End Sub

Application_Start
Application_Active
<Google> Advertising tracking may be disabled. To get test ads on this device, enable advertising tracking.
<Google:HTML> You are currently using version 7.14.0 of the SDK. Please consider updating your SDK to the most recent SDK version to get the latest features and bug fixes. The latest SDK can be downloaded from https://goo.gl/UoiJ8F. A full list of release notes is available at https://developers.google.com/admob/ios/rel-notes.
Failed: Error Domain=com.google.ads Code=1 "Request Error: No ad to show." UserInfo={NSLocalizedDescription=Request Error: No ad to show., NSLocalizedFailureReason=Request Error: No ad to show.}
Can't find keyplane that supports type 4 for keyboard iPhone-PortraitChoco-NumberPad; using 4072550144015629828_PortraitChoco_iPhone-Simple-Pad_Default
Can't find keyplane that supports type 4 for keyboard iPhone-PortraitChoco-NumberPad; using 4072550144015629828_PortraitChoco_iPhone-Simple-Pad_Default
<B4IList: (
    2,
    2,
    2,
    3,
    11,
    47189
)>
Failed: Error Domain=com.google.ads Code=1 "Request Error: No ad to show." UserInfo={NSLocalizedDescription=Request Error: No ad to show., NSLocalizedFailureReason=Request Error: No ad to show.}
Application_Inactive
Application_Background