Failure happened on 'Sink' side. ErrorCode=UserErrorKustoWriteFailed,'Type=Microsoft.DataTransfer.Common.Shared.HybridDeliveryException,Message=Failure status of the first blob that failed: Mapping reference 'TestTable' of type 'mappingReference' in database 'XXXXX' could not be found.,Source=Microsoft.DataTransfer.Runtime.KustoConnector,'