Update app2.py

app2.py

@@ -119,7 +119,7 @@ def remove_from_header(event):
     button = event.obj  # Get the clicked button
     print("Here lies the issue:", buttons_to_add.index(button.name), buttons_to_add, flush = True)
     if button.name in buttons_to_add:
-        paper_list.remove(buttons_to_add.index(button.name))
+        del paper_list[buttons_to_add.index(button.name)]
         buttons_to_add.remove(button.name)  # Remove from the header buttons list
         filter_list.options.append(button.name)  # Add back to the filter list options
     update_header()  # Update the header and filter list