Ibooks Approval-to-Availability

I recently submitted my book to Ibooks 1 day ago and iTunes Connect is saying that it's on 3 stores

However, when I click the link to view it in the iBooks Store, it reads:

Your request produced an error.

[newNullResponse]

Is this Normal ? Why would I be approved if the book doesn't show on the Store ?

Is there a delay between approval and availability ?