bookingbusiness-post-customers (One or more validation errors occurred.)

[Stoufa (stoufa)]

I'm trying to run this example to add a customer to a bookings page, I'm getting the following error without detailing what's wrong with the BookingCustomer object I'm trying to add, is there a way to get more details about this error?

Error: {"type":"https://tools.ietf.org/html/rfc9110#section-15.5.1","title":"One or more validation errors occurred.","status":400,"errors":{"":["The input was not valid."]},"traceId":"00-96c34f22ed17470881a2abe336283c5f-2116c72497c4f370-01"}