Custom Fields

I have migrated over 2000 listings from the non-responsive theme to the new responsive theme, and it seems that all of the custom fields for registration and listings have not been brought over – the lists are empty – the data is there as it is showing in the front end – but the fields are not editable when a user edits a listing, and they are not fill-in able when a new listing is created….

Can someone please help. Thank you.