Update app.py

app.py

@@ -157,7 +157,7 @@ def main():
 
             # Step 5: Ensure expected column is available
             if INTERVENTION_COLUMN not in df.columns:
-                st.error(f"Expected column '{INTERVENTION_COLUMN}' not found.")
+                st.error(f"Expected column '{INTERVENTION_COLUMN}' not found.") 
                 return
 
             # Step 6: Clean up column names