Astrid Pro - Install Failed - Missing the style.css stylesheet

Hi guys,
I’m unable to install Astrid Pro that I purchased, it’s giving me the message below. Can you please help? Thanks.

Installing Theme from uploaded file: Unpacking the package… Installing the theme… The package could not be installed. The theme is missing the style.css stylesheet. Theme install failed.

Hello Afia,

Astrid Pro is a plugin, please install it in your Dashboard → Plugins section.

Please feel free to ask any other questions that you might have.

Kind Regards, Roman.