Preventing Data Validation

I have this code with me

Private Sub Worksheet_Change(ByVal Target As Range)
Application.EnableEvents = False
'Does the validation range still have validation?
If HasValidation(Range("E2:F32")) Then
Exit Sub
Else
Application.Undo
MsgBox "Your last operation was canceled." & _
"It would have deleted data validation rules.", vbCritical
End If
Application.EnableEvents = True
End Sub


Private Function HasValidation(r) As Boolean
' Returns True if every cell in Range r uses Data Validation
On Error Resume Next
x = r.Validation.Type
If Err.Number = 0 Then HasValidation = True Else HasValidation = False
End Function

It does not return any error but its not letting me choose anything from the list.

But it does stop deleting any value and stop pasting any value to the cell.

Can you have a look at this please

Otherwise Can I get a code where I can restrict entries on SAT , SUN and Holiday. User should choose it from the list and no copy ,paste allowed on those cell.