incorrect link

I don’t follow. Do you have a page I can see the share link?

on Facebook: https://www.facebook.com/groups/spunti.appunti/

I still cannot see what you’re talking about but there are plugins like WordPress SEO to control social sharing title tags you can use.

It is not a problem seo (I already have a plugin and is accurate). On the same site the problem only occurs for woocommerce products and not for the post.
I’d send a screenshot, if you could, to show the error.
the site in question is https://shop.ilcielocapovolto.info.
inserting the link to a product on facebook, in the sharing box writes:
SHOP.ILCIELOCAPOVOLTO.INFO | di MARIA ANGEL CERDAN
Maria Angel Cerdan not know who he is.

Facebook would pull from these https://dl.dropboxusercontent.com/s/2dyx2ev3nc2vhfm/2016-07-20%20at%2011.11%20%281%29.png?dl=0 Ensure they are you ??

Yes I am. Only maria963 was the original name on facebook, then modified in marialberti.to. With post wordpress seo is renamed with woocommerce find this maria963. Today on facebook maria.963 name matches this Maria Angel Cerdan. How can I do? You know you help me?

We don’t control that author tag – look at your SEO plugin again.