The lens cover to my digital camera won't close, how do I fix this?

I have an Olympus Stylus 500 and the little cover that protects the lens won't move. When I turn the camera on, the lens can't extend all of the way and when it turns off, the lens goes in all of the way but the cover doesn't move over. How can I fix this?

You can't. Send it back to the manufacturer. Do not attempt to disassemble/fix it yourself. Send it in, they'll fix it. Do it yourself, you'll be buying a new camera.

duct tape it lol

Is the battery weak? Try new batteries.