To install Subscriptio simply:
- Make sure you have WordPress 3.6+ installed
- Download the plugin from CodeCanyon
- Unzip the downloaded file and locate a file named subscriptio.zip under Plugin
- Log in to your WordPress administrator zone
- Go to Plugins --> Add New --> Upload
- Upload file subscriptio.zip
- Activate the uploaded plugin
In case FTP upload is required:
- Download the plugin from CodeCanyon
- Extract the archive
- Locate a folder named subscriptio under Plugin
- Upload this folder to wp-content/plugins
- In administrator zone, go to Plugins and activate this plugin