Can't upload Airi pro theme - Stylesheet missing

I’m trying to upload the Airi Pro theme that I purchased however I get the following message:

Installing the theme…

The package could not be installed. The theme is missing the style.css stylesheet.

Theme installation failed.

I have checked all support documents and there’s nothing relevant within them. Please can you advise how I can get the theme active.

Thank you

Hello,

You are trying to install the Airi Pro as a theme, but it’s a plugin, so please install it as a plugin.

Kind Regards, Roman.
aThemes Support