He is in the older versions but not in the database anymore. He is now a staff member.

In fact, most of the Ajax staff members have faces in old databases with different IDs

Due to licensing reasons, Heitinga (and Bergkamp and load of other Ajax staff members) is no longer in the default database and the UID is the one used when added to the game through the licenses fix file. However the UID is not fixed and when you run other editor data files alongside the licenses fix file, it changes, which is why we don't accept UIDs not from the default db, and which is why I'm rejecting your request.

If you want to, you can use this image of Heitinga (from the exact same source incidentally) and save it in your game with the right UID

I have the fixes but didn't know the are not in the default db. Thank you for the explanation.