Try this:
Private Sub Command12_Click()
On Error GoTo Err_Command12_Click
Dim stDocName As String
Dim stLinkCriteria As String
stDocName = " Frm2 "
stLinkCriteria = "[ID]=" & "" & Me![ID] & ""
DoCmd.OpenForm stDocName, , , stLinkCriteria, , , Me![ID]
DoCmd.Close...