When I try to start my camara , I get a msg. on the screen that says. ERROR OBJ. RESTART CAMARA

Try removing the memory card and see if that resolves the problem.

If it doesn't, remove the battery from the camera and leave it out for at least 24 hours. Hopefully this will allow any residual charge to drain and reset the camera.

If this doesn't work, there are more serious problems with the electronics at hand.