Lens cover cap broken

Since I cannot see your pieces, I can recommend actual replacement. You can Google your camera's make/model with replace lens cover and pick from the listings. You can also go straight to Canon USA and search their store as they have replacement lens covers. I did this here for another customer as an example.
Lens Caps ' Canon Online Store shop.usa.canon.com/shop/en/catalog/.../ef-lens-accessories/lens-caps
Canon Tips & Tricks When using a lens with IS while on a tripod, ... Canon Tips & Tricks That hole in your battery cover has a purpose! ... Lens Cap 14mm f/2.8L II.

Probably the lens bayonet broke

Hi there,
I recommend to call Barry Edmonds Nikon technician at Fixation UK LTD
44 20 7091 2550
All Best
Rafal

Hi, allow me to suggest using another lens to see if you still see the dark patches in the top corners. If not it is the lens, if so it is the camera. Either way it sounds as though something is maladjusted. Call Nikon digital 1-800-645-6689.

the les coattings might have damaged due to uv filter broken,better get it the lens serviced.

Hi there, after fall in the floor , your camera's lens guider is broken & thats why its not able to came out fully & not doing proper focusing. Replace the lens guide pin. After that it will work fine like before. Thanks.

Hi there.
Sometimes when cameras are left for a while the lens can become stuck and you end up with an error message.
The best way to deal with it is face the camera towards the ground and tap it on the back firmly while turning it on, in most cases this method works, but in some cases a little WD-40 does the trick.

If none of this works it has to be taken to a service center for repair.

Please post back with the results and more help if needed, good luck and thanks for using FixYa!!

Hi there, there is two possibilities. The first one is to check the lens barrier covers at the front of the lens are opening correctly. If the front cap is dented in any way it may prevent them from opening fully when switching the camera on. If this is the case, you may be able to manually assist the cover by gently pushing them open with something soft like a cotton tip. This wont fix the problem but may temporarily allow you to use the camera. The other possibility, is that the shutter assembly inside of the lens has been damaged. If you gently shake the camera you may be able to see something shifting across the image on the screen or even when looking through the front of the lens itself. If this is the case you would need to have a service centre replace the lens for you. The same applies for the front barrier however that repair would be much cheaper. Best of luck!

I have successfully fixed the same error on a Nikon 2100 by dissasembling the camera and removing grit from the gears that drive the lens. However, if the camera has been dropped, I suspect that something has got dented or bent. It may be worth taking the camera apart to see if a gear has got dislodged.

I would warn you to be very careful not to get a shock off the flash capacitor inside the camera though. Also, it took me quite a while to put it all back together. It's not the easiest device to work on, a result of the very compact body (for its time!)

You have to send it in to repairs. You're lucky that the lens even still comes out.