How do I fix a sticking lens? - Sony Cyber-shot DSC-W50 Digital Camera

Stuck automatic lens cover is usually a very easy fix. A lot of times it's just a bit of gunk or dirt jamming it. Pay attention to the paper or vacuum fix. Do not recommend opening it as it is somewhat complex (tiny springs and shutters).
http://camerarepair.blogspot.com/2007/11/repair-of-stuck-lens-covers.html

Hi,
Your camera is busy to handle your lens. It draws the power all times. Please get fix your lens first and see how your camera draw power.

The lens doesn't have to be stuck to have a lens error. The auto-focusing ring could be sticking, or the gears could be jamming a bit because of dust, lint, dirt, or sand. Here is a good web blog that explains things you can try to free it up, and they say about 50% of the cameras can be fixed trying their suggestions:
http://camerarepair.blogspot.com/2007/12/fixing-lens-error-on-digital-camera.html
The first thing to try is to spray the lens assembly with some compressed air. Hopefully, this will fix it.
If all fails and you elect to have it fixed, get an estimate first, since repair costs can be high.
Good luck, and hope this helps.

this its a problem that comes if you have make a pressure on the lens, or if the camera is dropped. you must change the lens block. you can find the lens spares on ebay international seller, any usa seller if you buy the complete lens, give you a guide to fix the problem. but its a job for person that have a minimum knowledge with eletronic. the lens spares cost goes from 20 to 40 euro ...so you must look the convenience to adjust you camera. ok.??? sorry for my bad english

This blog post outlines repair procedures for stuck lens covers. Recommend trying reader "Jeff's" fix first shown in the comments section.

Your going to need a new lens. You might be able to fix it depending on the damage.

This is probably THE most common failure among digital cameras. There's a halfway chance of fixing it yourself, described here: http://camerarepair.blogspot.com/2007/12/fixing-lens-error-on-digital-camera.html

The lens/zoom has tendency to stick. Try newest batteries and try several times to turn on and off. If all else fails, Kodak will fix it for $50

It happened to me as well. If you can see the lens is not retracting when you shut it off, just force it to go straight in by pulling it our or just pushing it up so it straightens out.

This is probably THE most common failure among digital cameras. There's a halfway chance of fixing it yourself, described here: http://camerarepair.blogspot.com/2007/12/fixing-lens-error-on-digital-camera.html