How to delete review?

Hi,
I was testing the plugin and I wrote a review for a product to see how it worked and displayed. Unfortunately the review has the name of the admin, and I’d like not to show it. So I went into the backend, but even if the name is changed in the backend it doesn’t change on the page. I’ve tried many times, but with the YITH reviews plugin installed the name doesn’t change and if I delete the review it still displays on the page. If I deactivate or delete the plugin the review is gone, but if I reinstall the plugin the review reappears. Is there any way to change the name or to delete the review completely?
Thank you