The built-in speaker is no longer working

The built-in speaker is no longer working

The built-in speaker is no longer working. No sound can be heard coming from the bottom speaker. This does not affect the functionality of the camera in terms of image output but you cannot hear the sound of a video when you review it in the camera. Also you cannot hear the sound of the shutter. I think it’s a physical issue but I can’t guess what I can do. Thank you.