Hello. Both the frontend and backend run normally, but the pictures on the page can't be displayed normally.

This is my front .
(ployrnn) gaoennan@gaoennan-MS-7D31:~/code/polyrnn/code/Tool/frontend$ python -m http.server
Serving HTTP on 0.0.0.0 port 8000 (http://0.0.0.0:8000/) ...
127.0.0.1 - - [11/Jan/2022 14:08:20] "GET / HTTP/1.1" 304 -
127.0.0.1 - - [11/Jan/2022 14:08:20] code 404, message File not found
127.0.0.1 - - [11/Jan/2022 14:08:20] "GET /static/js/jquery.svg.pan.zoom.js.map HTTP/1.1" 404 -
127.0.0.1 - - [11/Jan/2022 14:08:33] "GET / HTTP/1.1" 304 -

And a request of frontend is always failed.