Very strange, but we did a test of uploading themes where the situation (PC on the same to the Internet) was always the same.
Other themes were uploaded very quickly and could be activated without any problems.
But with this theme it did 4x as longer as it was uploaded, plus we received an error (see attach) once the theme was uploaded.
After refreshing the screen and activating the theme, we got the same result as shaun.
We are very sorry, but something is not good with the file we get from this site.