[Plugin: Widgetopia-Lite] Wont install

This is what happens when I try to install:

Downloading install package from http://downloads.wp.xz.cn/plugin/widgetopia-lite.zip…

Unpacking the package…

Installing the plugin…

The package could not be installed. No valid plugins were found.

Plugin install failed.

http://ww.wp.xz.cn/extend/plugins/widgetopia-lite/