Wordpress plugin does not replace "leave a reply" button with the link to forum on my theme

[steelmaiden]

Screenshot:

Link to article: http://webmajstori.geek.hr/facebook-power-editor-neizbjezan-alat-za-preciznije-oglasavanje/

Any idea what needs to be changed in code to get this working properly?

[steelmaiden]

Can anyone please help with this? I can pay if needed.

Thanks