I just ran into the same problem.
Message from AirBNB to me:
"Thank you for your patience, I checked on the reservation and your listing. This has nothing to do with the listing, it could be in the guest side as to why the system is hindering her in confirming the reservation. There might be information that the guest need to add in her profile.
Is it possible for you to inform the guest to reach out to us? So, we can check her account and assist her."
Message from AirBNB to the person trying to book:
"I'm saddened to know about the issue that you're encountering when trying to book a place. I apologize for the inconvenience this may have caused you.
Upon checking, the reason why you were not able to book this listing was due to some procedures in place that block certain reservations for your safety.
Airbnb implemented rules on booking patterns associated with prior risks. My sincerest apology as we are not able to support these particular bookings.
I also want to apologize that as of the moment we don't have the information available as to what specific booking patterns are associated. These restrictions on reservation are one of the measures initiated by Airbnb to protect our guests on a possible safety risks.
For the meantime, I suggest finding a private room or a hotel boutique in replacement to an entire home place.
So… To sum up…
- You can’t book due to a security problem
- We don’t know what that security problem is
- Book a hotel instead