Java issue?

Hi, using macbook 10.6.8. and wp 3.9.1 for some reason the java doesn’t work for the basic-styling-advanced buttons and I am not able to access those links, neither am I able to add sharing buttons (the drag & drop doesn’t work. I have tried with updated versions of Safari, Chrome and Firefox. Any thoughts on how to solve these issues?

https://wordpress.org/plugins/simple-share-buttons-adder/