Most likely it means that the status of the listing is no longer ACTIVE, it has become INACTIVE.
COULD BE EXPIRED, CANCELED, WITHDRAWN, SOLD, TEMP OFF MARKET, PENDING, ETC.

N,

For any number of reasons, it is no longer on the market to be sold. Direct contact with the listing agent should provide better insight into this situation.

Hi
It is either been Withdrawn, has a sale Pending, has been taken Temporary Off Market, Sold or Expired. We don't have an Inactive slot. Best is to call the agent that had the property listed. If your interested tell them , the sellers did have the motavation to sell, they still may.
Good luck
PAUL