Counter on mobile device show all deleted comments

Excellent plugin!!!

However although I have deleted all comments (my own test comments) the counter still show in my example 13 comments. Is it possible to reset this number?

I can simply turn of comments count, but despite having done that i nthe plugin admin area they still show up using my Iphone.

Could someone help with this?

https://www.ads-software.com/plugins/facebook-comments-plugin/