[plugin Like-Button-Plugin-For-WordPress]: HTTPS issue

I’m using your plugin on a website that uses SSL certificate and your plugin is the only one that causes following warning, that pops up in certain browsers:

"[blocked] The page at https://www.acompalia.org/ ran insecure content from http://js.gb-world.net/lib/ga_social_tracking.js?ver=0.1."

What can be done about that?

http://wordpress.org/extend/plugins/like-button-plugin-for-wordpress/