Missing style.css stylesheet

Hi,

I have recently purchased Arcane Theme but it is missing css file.

When I have tried to download the theme, WordPress kept giving me this error: (The package could not be installed. The theme is missing the style.css stylesheet). In the end I downloaded WordPress file. The Theme works but I cannot customise it. I don’t even have it on WordPress Dashboard. I had Blackfyre theme before and it worked perfectly fine.

Is there any way to get the css style file?