Sharing on Facebook the description is wrong. I want to share an article k2 on Facebook and item description shows this:

(function (d, s, ID) {var js, FJS = d.getElementsByTagName (s) [0]; si
(d.getElementById (id)) {return;} js = d.createElement (s); js.id = id; js.src = "/ ...

How I can fix this?

Help me please....thanks

Hello,

This is generated from a 3rd party extension, possibly a social sharing one.

I did not understand. What I have to do? Help me please. Thanks

Look for the extension that generates this code.
It is most probably a social sharing extension.

Without a link I am afraid I cannot tell any you more information.

LINK: medaunarisa.com/index.php/de-todo/item/53-estiramiento

First all of your item does not have any text.
Furthermore the issue is from the social plugin you used to generate the sharing buttons in the item.
I would suggest that you use K2's native buttons instead.