Update app.py

app.py

@@ -57,7 +57,7 @@ if maincol2.button('Recommend by description',use_container_width=True):
         course_id=coursedf.iloc[index,0]
         st.subheader(course_id+": "+result)
         with st.expander("See description"):
-            st.write(course_df_new.iloc[index_new,3]) #Using the new coursedf because it has proper descriptions for each course
+            st.write(course_df_new.iloc[index,3]) #Using the new coursedf because it has proper descriptions for each course
         link = "[ExploreCourses](https://explorecourses.stanford.edu/search?q="+course_id+"+"+result.replace(" ","+")+")"
         st.markdown(link, unsafe_allow_html=True)
         link = "[Carta](https://carta-beta.stanford.edu/results/"+course_id+")"