Rustling sound and not recording motions

Hello,I have problems with my indoor camera. It is not recording any movements and it is also not recording nonstop. There are always missing parts and it says that “this footage is unavailable”. The camera is only recording “Linked events” when there is movement at the other camera.The other problem is that once a day the camera starts doing rustling sound and it will not stop until we plug it off.Thanks for your time