Hi,
i have updated nuget packages and now it seems that my FluentValidation returns null as ErrorMessage of my WebServiceException.
I can find the errormessage inside the response.ResponseDto called Message
{"ResponseStatus":{"ErrorCode":"Predicate","Message":"You must be a admin to be able to book outside the schedule opening hours.","Errors":[{"ErrorCode":"Predicate","FieldName":"AllowBookingOutsideSchedules","Message":"You must be a admin to be able to book outside the schedule opening hours.","Meta":{"PropertyName":"Allow Booking Outside Schedules","PropertyValue":"True"}}]}}