http://www.nikonchat.com/s3000-coolpix/

How I can fix an error in the lens in a Nikon Coolpix S3000?
You might have the "S3000" wrong side, sorry. But However, every time you capture a certain point, the camera zooms in and out of their own volition after the lens is complete and the camera says lens error.
I would read the manual, especially the section on zoom, digital zoom (the devil's work, do not always use) and the troubleshooting section.
Nikon Coolpix S3000