Update app.py

app.py

@@ -407,8 +407,6 @@ elif app_mode == "Data Cleaning":
         st.warning("Please upload data first")
         st.stop()  # Stop execution if no data uploaded
 
-    df = st.session_state.cleaned_data.copy()  # Work on the latest cleaned data
-
 
     # Data Health Dashboard
     enhance_section_title("Data Health Dashboard", "📊")