Following these steps below to upload theme via FTP:
Step 1. Login your FTP account via an FTP software to access your host web server.
Step 2. Unzip royal-hotel.zip file.
Step 3. Upload the exacted theme folder sailing to wp-content/ themes folder.
Step 4. Active the theme in Dashboard >> Appearance >> Themes.
Step 5. Enable Thim Core to activate the core of Sailing and start importing demo data process.