@Cindy1754
Here is what I think is happening...
When you do a general search (no dates) Airbnb defaults to "any week". Airbnb says a week is "5days". Your calendar is pretty full with only one block of dates of 5days available end of May. The rest of your calendar has a few dates open after that, but not a 5day block. Your calendar is completely blocked starting Sept 1. If a guest does a general search, Airbnb will only display listings that have a 5day block available (any week). Hosts have been asking for a long time for Airbnb NOT to default a general search to a week (5days), as many listings will be excluded from results to no avail.

If a guest enters specific dates, and yours are available, then your iisting will appear.
