Did you install any hacks? It sounds like you where using a mod then removed the modification and the profile has additional fields due to the mod (which makes perfect sense).
Groupee at one time had a script that would remove the additional fields; or you can modify the code to allow for more profile fields; however I don't recall where any of this is anymore as I haven't used classic in 2 years; but i'd imagine it's in a lib file somewhere.
