We've created this Forum Thread with some workarounds and advice to assist you in publishing you ebook.
Print book disappeared from Amazon & B&N?
I published "South of South Beach" in print on Lulu in 2015. Added an e-book last year and, suddenly, I can't pinpoint when it exactly happened, the print book is no longer available. I had it discounted 40% to $20 bucks and the e-book for $2.99 and just found it for sale for $60 and other offers on Amazon and on B&N it totally disappeared. Anybody ever have this happen?