PersonService.Create(...) throws exception

Questions
5

Even when I don’t use the mapping function I still get the same error.

var person = new Person(fieldTemplate.SystemId)
            {
                FirstName = model.NewAccount.FirstName,
                LastName = model.NewAccount.LastName,
                Email = model.NewAccount.Email,
                Phone = model.NewAccount.Phone,
                LoginCredential = {
                    Username = model.NewAccount.Email,
                    NewPassword = model.NewAccount.Password
                }
            };