Post to facebook not working

Hi,

Im having an issue with posting on facebook. Before it worked just fine. But today I noticed that the Jetpack plugin have disappeared from my page. Then I had to delete its folder via FTP in order to reinstall it. I did it, added my facebook page account again and tried to publish my post on facebook but no success.
On jetpack panel > share this post, my facebook page appears but that button that used to be blue (and you had the option to activate and deactivate it) it is now grey and I cant click on it anymore. It’s very frustrating.

Any thoughts on what could be causing it?

Tia

The page I need help with: [log in to see the link]