diff --git a/server/src/services/analytic_service/analytic_service.rs b/server/src/services/analytic_service/analytic_service.rs
index 5da94e6..6da49de 100644
--- a/server/src/services/analytic_service/analytic_service.rs
+++ b/server/src/services/analytic_service/analytic_service.rs
@@ -136,9 +136,15 @@ impl AnalyticService {
                 }
             }
             ResponseType::LearningFinishedEmpty => {
+                // TODO: drop all learning_waiters with empty results
                 self.learning_results = None;
                 self.learning_status = LearningStatus::Initialization;
             }
+            ResponseType::LearningDatasourceError => {
+                // TODO: drop all learning_waiters with error
+                self.learning_results = None;
+                self.learning_status = LearningStatus::Error;
+            }
         }
     }
 
@@ -159,7 +165,6 @@ impl AnalyticService {
         ms: MetricService,
         ss: SegmentsService,
     ) {
-        
         match tx
             .send(AnalyticServiceMessage::Response(
                 ResponseType::LearningStarted,
@@ -202,6 +207,15 @@ impl AnalyticService {
         for r in rs {
             if r.is_err() {
                 println!("Error extracting metrics from datasource");
+                match tx
+                    .send(AnalyticServiceMessage::Response(
+                        ResponseType::LearningDatasourceError,
+                    ))
+                    .await
+                {
+                    Ok(_) => {}
+                    Err(_e) => println!("Fail send error abour extracting error"),
+                }
                 return;
             }
             let mr = r.unwrap();
diff --git a/server/src/services/analytic_service/types.rs b/server/src/services/analytic_service/types.rs
index c84d65c..42271b0 100644
--- a/server/src/services/analytic_service/types.rs
+++ b/server/src/services/analytic_service/types.rs
@@ -19,6 +19,7 @@ pub enum ResponseType {
     LearningStarted,
     LearningFinished(LearningResults),
     LearningFinishedEmpty,
+    LearningDatasourceError,
 }
 
 #[derive(Debug)]