So First of All Step is to Install Generate Press Theme from WordPress Then Follow Steps Give Below. 1st Unzip the downloadable file then find the required plugin folder and add all this plugins into your WordPress. 2nd Go to Appearance-Generate Press Activate Elements Module. 3rd Go to Appearance-Customize-Additional CSS and paste the Additionalcode.css code file. 4th Go to Tools-Import-WordPress(Install Now) After Installation Run Importer and Choose elements.xml file. 5th Go to Appearance-Elements you see a element named Sticky Footer WhatsApp Button edit it add your URL in the button that's it. You'll Sticky Footer WhatsApp Button Setup Done!