Sherrie this has happened to me too. A sudden lack of bookings.
When looking for my property, I am now aware that the changes that airbnb have made to their search engine means that a much larger area is covered by any one search.
Originally if you put in my area, about 90% of properties would be from that particular area. My recent search resulted in 3 out of the first 18.
I suggest you do the same and if this is what you find, report your concer n to Airbnb. Hopefully this will result in changes if enough people point out the negative affect it is having on their bookings.
Airbnb pointed out that I am still getting people viewing but if someone is looking for Gloucester and is directed to Hereford then they are just going to pass it by.
I hope this helps x