Download the final zip file from your downloads page.
Unzip the final zip file; you should now have a final download folder.
Do not upload the final download folder. Open up the final download folder.
Browse the contents and find the actual theme folder. If you look inside the theme folder, you will see a “style.css” file. This is how you know you have found the theme folder.
Using an FTP client, upload only the theme folder to your “wp-content/themes” folder.
Login to your WordPress admin panel and activate the theme.
Make sure you are not uploading the themename-plugin.zip file under the appearance > themes section. Should uploaded from plugins section.