Be sure your software meets requirements of the Affiliate Egg plugin:
PHP 5.3 or higher.
Wordpress 4.2.2 or higher.
The manual plugin installation is the same as any other installation of the Wordpress plugin:
Download a ZIP archive of the plugin from your user panel or your license provider.
From wp-admin interface, select Plugins
-> Add New
.
Click Upload
.
Click Choose File
and select Affiliate Egg
zip file.
Click Install Now
.
Activate the plugin through the Plugins menu
in WordPress.
Input the active license key. You can find the key in your user panel or in your license provider.
Please find here the releases notes.