Only perform macro if a cell from a specific range is selected (SOLVED)

Hello,

I have 2 problems with a specific macro I created. The macro creates a new worksheet that is a copy of my template sheet and renames it to the value in the original cell on my "Masterlist". My problem is I only want this to happen when a new item is entered in range("b11:b"). Right now it happens when you enter new text in any cell in the "Masterlist" sheet.

My second issue is when I delete an entry on the "Masterlist" it also creates a new copy and then renames it. How could I alter my code to avoid this.

Thank you for any help.

Dave

Private Sub Worksheet_Change(ByVal Target As Range)
    
    Application.ScreenUpdating = False
    Dim wsNew As Worksheet
    Dim MySheetName As String
    If Target.Cells.Count > 1 Then Exit Sub
    MySheetName = Target.Value
    Sheets("Template").Visible = True
    On Error Resume Next
    If Not Intersect(Target, Range("b11:b")) Is Nothing Then
        Set wsNew = Sheets(Target.Text)
        If wsNew Is Nothing Then Sheets("Template").Copy After:=Sheets("Masterlist")
        ActiveSheet.Name = MySheetName
        Sheets("Template").Visible = False
        
    End If
Application.ScreenUpdating = True

End Sub