Fatal error: Class 'FLMenuModule'

Hello,

I was looking for plugins and came across Beaverlodge Pushmenu, once I downloaded the app, I got the following error on my page.

Fatal error: Class ‘FLMenuModule’ not found in /home1/dcabrera/public_html/wp-content/plugins/beaverlodge-pushmenu/includes/bb-sw-pushmenu-module.php on line 63

I can’t log in and my site only shows that message. Can someone please help me figure out the issue. I appreciate your time.

My website address is: http://www.puvisual.com.ni

The plugin I used is – https://wordpress.org/plugins/beaverlodge-pushmenu/