[Plugin: Form Lightbox] Not working for me ever

Hello

I try to us this plugin, but when i installed it on wy WP, then i go in one of my page and i add a form with the lightbox button

I try to display a contact form 7 on this page. But when i click on the link, nothing appen.

And when i go in my admin board, the form light option doesn’t appear in the setttings section.

Your tutorial on your website speak about editing php but witch ones and where ?

Can you please have a look and tell me if you see something

http://ww.wp.xz.cn/extend/plugins/form-lightbox/