No data scraped yet but preview looks ok

Trying to build a pretty basic scraper which will grab a website address and then click next page and repeat. When I try the preview it works ok, then when I run it, the scraper will go through each page but at the end it says "No Data Scraped Yet".

Any ideas/solutions would be welcomed, thanks

Url: 365 Retail - The Business Show 2023

Sitemap:
{"_id":"thebusinessshow","startUrl":["https://www.greatbritishbusinessshow.co.uk/exhibitors/21cg"],"selectors":[{"id":"name","multiple":false,"parentSelectors":["_root"],"regex":"","selector":"h1","type":"SelectorText"},{"extractAttribute":"href","id":"site_url","multiple":false,"parentSelectors":["_root"],"selector":".m-exhibitor-entry__item__body__contacts__additional__button__website a","type":"SelectorElementAttribute"},{"id":"pagination","paginationType":"linkFromHref","parentSelectors":["_root","pagination"],"selector":"a.pagination__list__item__link--next","type":"SelectorPagination"}]}

Hey,

Thanks so much, this worked great.

Have a great Sunday