Running in docker with error Log:"这个文件夹没有文件"

[SunnyPai]

First, I made a docker image with the following dockerfile:

Next, I deployed it with docker compose:

And then changed the download link and aria2 server address as the docker compose file:

Last, I deployed the stack, and the log in docker portainer showed this error (maybe function?)

With the script run once, a new error log generates, repeatedly.
And I found two parts with the same text in the main.py script, but as an Operator, I do not know any of python programming.

May you tell me something about this? Thank you very much~
And I can understand both English and Chinese Simplified, so I prefer you using any of these languages.
Wish you a good day!

[高玩梁]

Due to the change of Microsoft's new web interface, the original strategy of recognizing whether there are files in a folder is invalid, and the relevant code has been deleted, and no information will be output for empty folders at present.