I remembered that somebody else had trouble with this error a few months ago on a Wacom MobileStudio Pro. Whilst the discussion does not provide a definitive solution, it may act as a useful starting point in a discussion to address the problems you are having.
Edit: re-reading both your message and the old one, the issue seems to be with the calibrator program specifically.
The manual for this model and other reference sources make no reference to calibrating the camera, only to calibrating the pen. I did eventually manage to track down some usefukl information from one user though:
"There’s an 'Intel RealSense Camera Calibration Notifier' that loads on startup, and if you’re in Tablet Mode, that shows as a big blank white window which is pretty annoying and useless. I disabled it by going to the Task Manager > Startup tab > selecting and and pressing disable."
The user reckoned the calibration - for the pen, at least - is pretty good out of the box, so maybe you don't need to run the camera calibrator.