If you're okay with doing it, you could temporarily remove MFA and see if that resolves it. Or you could make a second Plex account without MFA, get share access on that account and use that to download through PlexRipper.
If you're okay with doing it, you could temporarily remove MFA and see if that resolves it. Or you could make a second Plex account without MFA, get share access on that account and use that to download through PlexRipper.