Theme error — folder already exists

Hi —

I am trying to upload a premium theme to wordpress site. At first, I tried to upload what I hadn’t realized was a folder, not a zip. So I got the theme into a zip format. But then, when I tried to upload, I got an error message that said, “Destination folder already exists. … Theme install failed.”

Is there someway to clear out that folder and start over with the zip? Is that the problem or am I making an assumption that’s wrong and something else is going on.

Thank you for your help!

Deb