Error

[LixiangHello]

I don't known how to do in the case.

In Configurable nbextensions of jupyter page.

[jupyter_nbextensions_configurator] error loading scratchpad/main

This is my jupyter nbextension list notebook section nbextensions_configurator/config_menu/main enabled - Validating: problems found: - require? X nbextensions_configurator/config_menu/main contrib_nbextensions_help_item/main enabled - Validating: ok tree section nbextensions_configurator/tree_tab/main enabled - Validating: problems found: - require? X nbextensions_configurator/tree_tab/main ...

And I have got this error.

[W 14:14:53.991 NotebookApp] 404 GET /nbextensions/pydeck/extension.js?v=20230531141359 (::1) 8.000000ms referer=http://localhost:8888/notebooks/D86/test.ipynb [W 14:14:54.955 NotebookApp] 404 GET /nbextensions/widgets/notebook/js/extension.js?v=20230531141359 (::1) 3.570000ms referer=http://localhost:8888/notebooks/D86/test.ipynb