Greetings mubookstar,
Welcome to the Seller Forums! Thanks for your question!
I've reviewed your blocked offers.
Your offers are currently blocked because the books you are listing have not yet been released.
Amazon does not allow third party sellers to list pre-orders in the Books category.
Once the release date for each book has been reached, you will be able to re-list and remove the block.
I hope this information has been helpful!
-Lauren