Launch your Sitebuilder:

1. Click on System
   
2. On the left menu, click on Tools, scroll down you will see Sitebuilder, click on it.
   
3. Click on the Alias .
   
4. Click on the Launch Parallels Plesk Sitebuilder.
   
5. Now you can design and edit your website, once done click on top right Publish.
   
6. Click on Publish to publish your new content of the site.
   
7. Once you see The site has been successfully published, means content is updated to your website! If you see any error or FTP message, just recreate the Publish again til it done