Help with setting up

Hi!

I don’t know what i’m doing wrong with this but it don’t matter what I change I only get the following on my page:

Something went wrong fetching URL with JSON-data: A valid URL has not been set.error: get of json-data failed – plugin aborted: check url of json-feed

problems with JSON-structure: check basenode-param

What is basenod-param? And where do I put the URL?

I’ve set it up like this:
[jsoncontentimporter url=”https://www.example.se/api/book/?isbn=9780000000000&auth_token=8hcb5bbe2ca3fh137ch23a921aa68h1ddf”]{{isbn}}{{title}}{{sub_title}}{{pages}}[/jsoncontentimporter]