Restore whole website from the hosting

[Jose LuisG]

I have a Plesk Sitebuilder 4.5 for Linux/Unix from Hostgator and for some reason I don't understand several pages in the Sitebuilder disappeared at once, when I never marked them and push the left arrow
I like to know if it's possible to restore the whole site from the one, which is on line. Because there were several pages that dissapeared (the whole Real Estate section of my site).

Jose Luis Gascon
www.rivieramaya-vacationrentals.com