When i downloaded the file, i see a folder with .php files but no zip file.
Welcome to our forum,
this might be happening you are using automated unzip files programs in your machine (i have already noticed in another clients who using Mac)
you can zip theme and try to install.
We already provide the zip file only in our downloadeble files.
If this is not work please send me your order email i will send the zip file via email.