when installing theme in wordpress it shows an error missing the style.css.stylesheet

I have paid membership with evanto elemets and facing the problem while installing theme in wordpress. error : The package could not be installed. The theme is missing the style.css stylesheet.
i am using theme : https://elearni.wpengine.com/
and https://owly.wpengine.com/

How to solve this error?

Hi @investSmart,

This error occurs when the file you are trying to upload into WordPress is not a valid theme file. Please go back to your downloads page and download the theme again, making sure to select “Installable WordPress file only.”

If you don’t see this option, then you may have purchased an item which is not compatible with WordPress. I would suggest contacting the author of the item you purchased to see if they offer a WordPress version and can help you exchange it.

Hope this helps!