If you get one of these emails simular to the title of this FAQ, that means they don't like the name of one of the contributor's. Which mean Author, Editors, Illustrators, Translators and any others who assisted with your book's creation.
Since most just fill in the Author Name / Pen Name then they do not like the name you are trying to use in the Author section. You need to chnage it and then save your book again and it will go under review again to be approved.
If you did something like Mary Jane's Book Store, Mandy Lynn's Jounal Store, etc., they probably will reject those names. In the past you could pretty much use any name. More recently, they are being more strict about the use of names.