An error has occurred – cloudLibrary by Bibliotheca Review

New iPad (gen 8), with updated iOS. Receiving “An error has occurred There was an issue registering your device for reading. If you restored your device from a backup, you will need to reset your device. Press the reset button and then attempt to read your book again.” I have searched through FAQ on the site and there is no mention of what to do in this case. I tapped on Reset and I still cannot download any books. I shut off the device and restarted and the issue remains. I even tried with other books and the same error pops up. This includes books I was able to previously download successfully and read on my iPhone 6s+ Please help.
Review by Aminitee on cloudLibrary by Bibliotheca.