Installing Theme Video
Please take a look a structure of the realproperty.zip archive you got after purchasing. Upload a theme folder only on the ../wp-content/themes/ directory via any FTP manager. Then follow to Admin Panel > Appearance > Themes and activate a new theme.
Method II :
Find a theme folder and zip that. Then follow to Admin Panel > Appearance > Themes > Install Themes > Upload and upload an archive you’ve created.