Donor ID in subform

[Snickren]

I have a database that we run off a master form and in there I have subforms. We've been using it for a couple of years now and has worked in the past but we are experiencing issues with it now. In one of our subforms it is not transferring over the Donor ID which is set up as a 1 to Many relationship and as primary key and auto number.
I have not changed anything in the meantime. It worked as we first started entering data for this fundraiser.
Any ideas why it would not be working?

[ranman256]

Check the subForm,
Make sure the LINKED FIELDS still has DonerID. (DonerID is the master key?)
and the field is still in the table/query source.