Apollo - Sticky Full Width HTML5 Audio Player - WordPress Plugin

hi to all I need help to install
Apollo - Sticky Full Width HTML5 Audio Player - WordPress Plugin
when the load from wordpress tells me:

Installing plugins from the uploaded file: codecanyon-20158996-apollo-sticky-full-width-html5-audio-player-wordpress-plugin.zip
Unpacking the package …

Plugin installation …

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

Installation of the failed plugin.

Return to the plugin installer

What should I do? It is certainly not the first plugin that I install … or maybe it is just the plugin that is absent? In case they stole my money?