This octane_live_account.cfg file just didn't exist.

It was my fault, I hadn't the latest driver installed for my Quadro K4000M.
Now have installed the 377.88 driver and everything is working properly.

Thank you!

I tried to update from the old 1.01 Version to this new one:
First I deinstalled the old plugins.
Then I installed this addon with the help of the manual.
Now I can't enter the username and PWD, because the Render Settings do not open.
Instead I get following message:

Application.SetValue("Passes ...