Muscle loss?

Hey friends! I’m on day 6 of a 7 day fast (might go longer) but this is what my smart scale is saying I’ve lost nearly 3lbs of muscle mass 😳 second screenshot is fat percentage and I’ve lost 7.5 lbs in total on this fast. I started the fast in fat burning mode /low carb. So what are your thoughts? Or what can I do to minimize muscle loss? Bc I worked hard for what I have 😤