Seems the problem is with this line:
Try this. Can't guarantee anything as I'm not a VB coder, but hopefully it'll work.
Private Sub Pinger_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim tabs() As Integer = {20, 40, 60, 80}
Dim FromEmailForm As New frmFromEmail()
If IO.File.Exists(frommail) = False Then
Me.Hide()
FromEmailForm.Show()
End If