Irit Katriel added the comment:
There isn't enough information here to understand what your issue is. If you
are still having this problem on a current python version (3.9+), please create
a new issue and provide instructions how to reproduce it and information about
the environment in
New submission from Marc:
An error occurs when uploading a file ~<10kb:
A problem occurred in a Python script. Here is the sequence of function calls
leading up to the error, in the order they occurred.
/var/www/html/file-uploader/uploader.py in ()
39
40 # A nested FieldStorage