Plugin not working

The plugin seems to have stopped working.

I get this message in the admin area – “Something is preventing AddToAny from loading.”

I notice that your website is not loading due to a SSL issue – https://www.addtoany.com/ – are these things linked?

Thanks!

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