Install manually Unyson framework and extensions
For some reasons, you may need to install the Unyson framework without using wordpress interface. So we'll do it with a FTP client ;)
- Go to http://www.2f-design.fr/themes/starry/unyson.zip
- Download the file and extract the folder "unyson"
- Connect to your FTP and go to wp-content/plugins/
- Make sure there is no "unyson" directory
- Upload the new unyson directory