ML problem type lookup error

The server encountered an error processing the request. The exception message is 'The remote name could not be resolved: 'az2-ml-api''. See server logs for more details. The exception stack trace is:

at System.Net.HttpWebRequest.GetRequestStream(TransportContext& context) at System.Net.HttpWebRequest.GetRequestStream() at ServiceStack.ServiceClient.Web.ServiceClientBase.<>c__DisplayClassa.b__9(HttpWebRequest client) at ServiceStack.ServiceClient.Web.ServiceClientBase.PrepareWebRequest(String httpMethod, String requestUri, Object request, Action`1 sendRequestAction) at ServiceStack.ServiceClient.Web.ServiceClientBase.SendRequest(String httpMethod, String requestUri, Object request) at ServiceStack.ServiceClient.Web.ServiceClientBase.Send[TResponse](String httpMethod, String relativeOrAbsoluteUrl, Object request) at Terrasoft.Configuration.ML.MLServiceProxy.Post[T](String methodName, Object requestBody, Int32 timeoutSec) at Terrasoft.Configuration.ML.MLServiceProxy.StartTrainSession(String metaData, Guid modelSchemaId) at Terrasoft.Configuration.ML.MLModelTrainer.StartTrainSession(Boolean ignoreMetricThreshold) at Terrasoft.Configuration.ML.MLTrainingManager.Train(IMLModelTrainer trainer, Guid modelId, Boolean ignoreMetricThreshold) at Terrasoft.Configuration.ML.MLTrainingManager.ProcessModel(UserConnection userConnection, Guid modelId, Boolean ignoreMetricThreshold) at Terrasoft.Configuration.ML.MLTrainerService.TrainModel(Guid modelId) at SyncInvokeTrainModel(Object , Object[] , Object[] ) at System.ServiceModel.Dispatcher.SyncMethodInvoker.Invoke(Object instance, Object[] inputs, Object[]& outputs) at System.ServiceModel.Dispatcher.DispatchOperationRuntime.InvokeBegin(MessageRpc& rpc) at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage5(MessageRpc& rpc) at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage11(MessageRpc& rpc) at System.ServiceModel.Dispatcher.MessageRpc.Process(Boolean isOperationContextSet)