Send button in post display error

Hi,
I activate “send button” after post but when I click it I have a display problem: you can see it to my site.
My site uses Kleo Theme. I already asked to theme support but they didn’t help me much.

I attach the button before and after cliccking it, in the pic I’m at the end of a post.

https://www.dayroma.it/wp-content/uploads/2016/03/err-1.png

https://www.dayroma.it/wp-content/uploads/2016/03/err-2.png

How can I fix it?

thank you

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