If you had an emergency cancellation that would normally come under their host EC policy and therefore you wouldn't have lost your SH status. Why did you need to cancel @Esperanza37
Neither would one bad guest review make you loose your SH status unless you only have had a few reviews .
looking at your listing you have quite a few four star and some three star ratings so it would be the cumulative lower ratings that brought your ratings down not just one poor review.