i can turn my vivitar camera on. and the red light will come on. and usually when you turn it on it will come up lens cover closed and then i will open it and can take pictures like usual. but now when i turn it on the only thing that will come is the little red light thats tells you that its not ready to take a picture. none of the buttons work and the screen wont come on. ive tried changing the batteries and everything and it wont come on.