Hi @ChacalCH, welcome to the forum!
I don’t personally use Jottacloud, but I know some other users (such as @rix1337) have used it.
Could you let us know what version of Dulicati you are using and maybe post your job configuration exported “As commandline” (be sure to remove any personal data like email address, passwords, etc.)
Oh - and while it sounds like we’re not using the latest Jottacloud API, my guess is this is NOT the issue you’re running into (but I’m sharing it anyway, just in case I’m wrong):