Okay! It looks like there are still some issues with the new path /media/rooten/w/temp/
ValueError: Directory '/media/rooten/w/temp/qiime2' already exists without proper permissions '0o41777' set. Current permissions are '0o40777.'
A similar error happened here and deleting the directory seems to work well.
If no one else is using this computer, you can safely remove the TMPDIR and try again.