Update app.py

app.py

@@ -44,7 +44,7 @@ if uploaded_file is not None:
     st.pyplot(fig)
 
     # Create a plot with Matplotlib and display it in Streamlit app 
-    fig2, ax2 = plt2.subplots()
+    fig2, ax2 = plt.subplots()
     
     ax2.plot(df.index, df['value'], label='Original')