XF 2.1 Cannot see reactions when hovering over the like button

[magmiy]

The new feature of Xenforo includes a "hover to see reactions" feature, but it's not working on my website. When I hover over this:

Instead of seeing a bunch of reactions, I see nothing happen except for the underlining of the text, "Like."

I have them all enabled in the CP so I don't know what's going on.

 

[Ozzy47]

Have you checked on a unmodified default style?

 

[magmiy]

Have you checked on a unmodified default style?

Yeah, it works then... Do you know what I have to do to make it work on the custom theme?

 

[Ozzy47]

Have your style developer update the style to be compatible with 2.1.x