error: failed to open IO port, how to fix?

I yesterday tried to install the app chronos watch but i had no luck.

My chronos usb dongle was not reqonized by vera and i all removed it from my vera lite unit.

I removed all installed apps etc

But now it still reports device 'chronos (=id 117) as failed to open IO port

How can i manually remove all traces of this device, in the interface there is nowhere something listed from chronos device.

Please advise/help