Ovidiuxxxc on "When I deactivate the ShareThis plugin for WordPress, Facebook LIKE BOX is off."

Well, I discovered a bug on ShareThis plugin for WordPress. When I am deactivating or deleting the ShareThis plugin, my Facebook LIKE BOX doesn't appear anymore, it is not showing on my sidebar. What should I do?

I want to mention that Facebook LIKE BOX does not belong to ShareThis plugin.

I asked for support and they said to place code below into the CSS Style of ShareThis plugin.

.fb-like, .fb_edge_widget_with_comment, .fb_iframe_widget {
    z-index: 999999 !important;
}

It is not working. :|
Please help, thanks.