hello and welcome to the forum,
make sure the rclone command works from the command line first, then try python
when testing subprocess.run, use a simple command such as rclone version
i use subprocess.run - let me know if this helps
https://forum.rclone.org/t/dropbox-upload-using-bash/34009/7
think that should be rclone sync
https://pastebin.com/X4dvag08
when i try to view the log, i get "This page is no longer available."