Update app.py

app.py

@@ -250,7 +250,7 @@ with st.form(key='columns_in_form'):
         selections.append(col.selectbox(f'Make a Selection', choices, key=i))
     submitted = st.form_submit_button('Submit')
     if submitted:
-        selections = [i for i in selection for j in selections if i is not None]
+        selections = [i for i in selections for j in selections if i is not None]
         with st.spinner(text="Creating your digest: this will take a few moments."):
             chosen = []