@Arkeus: which FW version are you running, and on which device? And which package did you install?
Yes, you seem to be stuck in Plato, which should never happen, because it shouldn't start without user input, and you should be able to exit it safely.
What happens if you hard reboot the device? (Generally achieved by holding the power button for a while, until the screen turns off, then waiting a bit, and eventually pushing the power button normally. See the Kobo FAQ for your specific device).
EDIT: Okay, I did manage to reproduce a boot straight into Plato on an initial install, which is definitely something new since FW 4.13, I'd say (and not at all the expected behavior, as I mentioned

).
But that did not prevent me from quitting Plato properly, though.