disable_quotes not working

Hi there! I really like this plugin, and I’m working on a site for a design client, but the quotes inside the testimonials don’t disappear, even when I select the disable_quotes feature.

Is there another way disable them?

Here’s the test site for reference:
http://clarksville.highnotedesigns.com

https://ww.wp.xz.cn/plugins/testimonials-widget/