[Plugin: SEO SearchTerms Tagging 2] Not generatings tags from most used search terms

As above. I check the post edit screen, and there are no new tags. Some search terms have a count of over 500, but when i “test” it by adding a Tag widget to the sidebar, that search term is not displayed in big bold letters (indicating its used a lot in WP), it is not even found.

Any ideas?

https://www.ads-software.com/extend/plugins/searchterms-tagging-2/