It's not working ??

I’m sure I’m doing something wrong.
I downloaded and installed the Plugin.
I made a page and placed the clean registration shortcode on it.
I saved the page and made it public.

It does NOT come up to require anyone to register.
My website looks no different than it did before.

I am new at this and am sure the problem is MINE !:)
Please tell me what steps I’ve left out ???
I use the Hueman Theme and WP 4.1.1

I am looking for a simple, uncomplicated registration and login Plugin. The goal is to have all visitors register to see the content of my site.

Thanks for your help
JoAnne

https://ww.wp.xz.cn/plugins/clean-login/