Rotator accidentally deleted
If a Rotator or editable Section seemed to disappear from your page, it could be that your page template referred to the Rotator or Section by name. Try going back into the CMS and changing the Name of the item back to the original name.
For Rotators, this may be "Homepage" or "Homepage Rotator", for example. Check your site's Setup Guide for more details:
[http://www.yoursite.com]/_setupguide/