I’ve been using BookListR for quite awhile, but just recently it stopped working. I tried to add a couple of new items to my list. But I get the following error for those new items when I try to view the page:
We encountered an error while processing your request. Please make sure that you are using a valid developer token and that you have registered for this service. For more information, please visit https://www.amazon.com/webservices
Any help contacting the author would be great, or someone with a developer ID that actually works posting the necessary info.
Thanks in advance.