They've disabled API downloads for all account types ...
I'am unable to fully test it but it should work fine again after the next update.
If you do not want to wait, this should help immediately:
Go to Settings --> Plugins --> filejoker.net --> DISABLE "Use API" --> Go in the Account Manager --> Rightclick on your account --> Refresh --> Now try downloading
Please read our
Update FAQ | Bitte lies unser
Update FAQ
-psp-