Amazon’s launch of the Kindle+ subscription has led to a spike in technical issues across its site. Users report frequent errors when attempting to access or purchase items linked to the new plan.

In addition, several product listings mistakenly reference Kindle Unlimited, even though those items do not support a subscription model. The confusion has prompted complaints from shoppers and developers alike.

Good e-Reader’s report notes that the problems are widespread, affecting both browsing and checkout processes. Amazon has yet to issue a formal statement addressing the glitches.