well.. that's because this mod not working for books and some events..
maybe it's better if you buy pages on BB event with this mod. and change it to books. and you can buy anything with book.
You can get banned but what happened for me was that it only restricted access to the online events, you can still play normally, so it's not a big deal.
There are some errors when I try to buy pets or their "skins". Gives an error aswell when I try to make the hagrids birthday misson and the pets misson. Any way to do this?