Go to the WP Author Box official site to download its free version.
Click on “Try It Free”
Click on “Download Now.”
Put in your email ID. You will see a Confirmation page and also receive an email where you will get a download link. You can also download your free plugin from your confirmation page.
Here is the download link. After clicking this link, a ZIP file will be downloaded. Now you have to activate this plugin.
To activate the WP Author Box Free Plugin, go to the admin dashboard > Plugins > Add New Plugin > Choose File > Install Now.
Activate your plugin and enjoy free version