Sharethis plugin not disappears from posts

I have been using the Sharethis plugin with a lot of success and then today it disappears from all posts. I tried deactivating it then reactivating it but its still not showing up. The only thing I can imagine is i used screencastomatic.com that accessed my computer but the website is hosted by hostgator. Can anyone tell me why my sharethis plugin isnt working? My site is https://americasnewsnow.com

Thanks!