Being trying to add back Steven Spielberg's uncredited credit in Shrek when there is proof of it in his book

Hey I have being trying to add back Steven Spileberg's uncredited credit as an executive producer in Shrek when there is proof of it in his book "Spielberg: A Retrospective", but it is not allowing me. Here is my old submission with the the photo proof at https://contribute.imdb.com/updates/update?load=260812-122858-836000 and here is a photo proof of the picture from the book that took at   

If there anything that you need more of I will get if you want.