Update app.py

app.py

@@ -79,7 +79,10 @@ def run_dashboard(data_src, ticker, file_upload, timeframe, start_date, end_date
             df = add_sentiment(df, ticker, news_api_key, start_date, end_date)
 
         progress(0.6, "Training model...")
-        features = ['Open', 'High', 'Low', 'value', 'Volume'] + list(indicators) + (['sentiment'] if include_sentiment else [])
+        candidate_features = ['Open', 'High', 'Low', 'value', 'Volume'] + list(indicators) + (['sentiment'] if include_sentiment else [])
+        features = [c for c in candidate_features if c in df.columns]
+        if 'value' not in features:
+            raise ValueError("'value' column missing after loading data. Check data source and dates.")
         result = get_model(
             df=df,
             features=features,