Urgent help needed to reintegrate “Categories” into a Content Type

Urgent help needed to reintegrate “Categories” into a Content Type

· I hope I explain this clearly so here goes.
· I have a content type called “User Profile”
· I have six Categories that are linked to “User Profile” under the Types: heading in Edit Vocabulary page
· The content is still in the DB and visible on the Edit page for “User Profile”
· Until last week these Categories appeared in the “Categories (group_categories)” field of the User Profile Content Type
· Now the do not! (Don’t Panic) – “Categories (group_categories)” is now empty!

How do I reintegrate these categories into the “Categories (group_categories)” of the User Profile content type?