Guest can't book gets below message. I already approved the booking?

[Daniel8507]

Your reservation couldn't
be completed
We have implemented restrictions that prevent
guests from making reservations of entire homes
when a pattern of factors suggest that the
booking may present higher safety risks (such as
parties).
While we know this may be an inconvenience, you
still have options. These restrictions don't apply
to hotels or private rooms.
Explore hotels and private rooms

[Emiel1]

@Daniel8507 

Guest can not book as a result of the Airbnb "prevent parties" policy.

https://www.airbnb.com/help/article/2704/party-and-events-policy