Can you usePentax k1000 or me super film caamera lens on a Pentax ditigal camera?

SOURCE: Pentax Optio 50 Digital Camera Lens Error

Not really, it sounds like the lens has been bumped while it was extended. Unfortunately, the "buzz" you hear is the gears stripping one another. The only fix is to have the lens assembly replaced, which usually costs upwards of $200. I see this problem at least 3 times a week in my shop.

SOURCE: Pentax Optio 60 LENS

The same thing happened with my camera, I gave it to a freind for her husband to look at it. He said when turning on face the lens side down (to the ground) when turning off hold lens side up right (to the sky). this worked for mine. I don't know if he did anything else to it but when I zoomed I got lens error. I did what he said and it took several tries but it did work... please post if this helps you.

SOURCE: Pentax Optio M20

Maybe.
But it does seem to be a lens problem. Possibly the lens is out of sync as mentioned in another post here.If there is a grinding, the lens is probably damaged by dirt or sand.
Make sure the batteries or battery is fully charged.

SOURCE: Pentax K10D won't work with lens from Pentax K100 (film0

The lenses are probably manual focus lenses,  

1. Make sure that the apature ring is set to 'A' or automatic, 
   
2. if these are manual focus lenses then switch the focus switch on the left side of the camera body to MF 
3. If this still doesn't work, or you are having trouble with the apature ring then press the menu button to go to the  menu then press the right arrow key untill you are in the  Custom Settings, scroll through the custom settings with the up and down arrow keys until about the 2nd from bottom there is an option called "using aperture ring" set this to 2 (Permitted) This will make the camera take a image when lens is on any f-stop manually. 

SOURCE: Sony Super Steadyshot DSC W80 and lens keeps going in and out

Hi, Focal lens out of sync. camera cannot initialise. Lens requires manually resetting. If you in the U.K , I can help you out.
p.m me at [email protected]