Recurring 5461 error

I am trying to put a book on Amazon which has an ISBN number that I bought from the Independent Publishing Network. The book appears on the site but when I try to add my product information I get a 5461 message which says I may not create a new ASIN for this brand.

Upon reviewing, we would like to inform you that we have detected you are facing error 5461 on the following product/s that already exist on Amazon. We suggest you to list the item as an offer against the existing ASIN, this way you will be able to sell the item on Amazon.

Cafe Europa Matches*** ASIN 1800689667(Detail Page:https://www.amazon.co.uk/dp/1800689667)

Please match the item against existing ASIN on Amazon.