The category was requested to be changed via SiteReview (Reference this article: How to request a change for a current website category associated with its domain or IP), but the category change was not done and confirmation was received that the category was not changed.
In rare cases, you will need to open a ticket with support who can reach out the WebPulse/SiteReview team and investigate the site category.
In this case, there was an older rating from a previous domain owner that was causing a conflict with the category.