Adding fix

src/utils/data_processor.py

@@ -567,7 +567,12 @@ class AspectAnalytics:
                     'priority_score': round(metrics['priority_score'], 2)
                 })
         
-        areas_of_improvement = pd.DataFrame(improvement_data).sort_values('priority_score', ascending=False)
+        # Handle empty DataFrame case
+        if improvement_data:
+            areas_of_improvement = pd.DataFrame(improvement_data).sort_values('priority_score', ascending=False)
+        else:
+            # Return empty DataFrame with correct columns
+            areas_of_improvement = pd.DataFrame(columns=['aspect', 'negativity_pct', 'intent_severity', 'frequency', 'priority_score'])
         
         # Create Strength Anchors DataFrame (top positive aspects)
         strength_data = []
@@ -581,7 +586,12 @@ class AspectAnalytics:
                     'strength_score': round(metrics['strength_score'], 2)
                 })
         
-        strength_anchors = pd.DataFrame(strength_data).sort_values('strength_score', ascending=False)
+        # Handle empty DataFrame case
+        if strength_data:
+            strength_anchors = pd.DataFrame(strength_data).sort_values('strength_score', ascending=False)
+        else:
+            # Return empty DataFrame with correct columns
+            strength_anchors = pd.DataFrame(columns=['aspect', 'positivity_pct', 'intent_type', 'frequency', 'strength_score'])
         
         return areas_of_improvement, strength_anchors