Lens error on an canon

This is usually caused by a physical problem within the lens assembly of the camera. It's simple to get looked after and not much at all. If you go to: camerasandparts.com they have the perfect solution for this. For $79, you get a brand new original Canon lens unit installed plus the whole camera serviced up, return shipping even comes included. They specialize in these Canon Powershot cameras and nothing else, they are totally amazing if you need a hand with a powershot and they know these things so well. Hopefully that will help, best of luck with it.