Notes/Domino 4 and 5 Forum

Has anyone ever received this error: Notes Error - #0C:1D?
I can't find it anywhere!
I am trying to have documents refresh when open.
I am using LotusScript in PostOpen to get the commonUserName and compare it to other Name field values. If it matches
uidoc.Editmode = True
Call uidoc.Refresh
End If
uidoc.editmode = false

Thanks