Hi,
1. You have to disable 1fichier 2FA login (NOT enable!) if you want to use it in JD with username & password.
2. You should use 1fichier with your apikey in JD if your account is a premium account.
See Settings -> Plugins -> 1fichier.com -> Enable "Use premium API".
3. I was not able to reproduce your issues with my 1fichier premium account.
Also, if you want to force JD to download only in premium mode, an
account usage rule for 1fichier should help.
Please post
your log-ID here | bitte poste
deine Log-ID hier.
-psp-