It won't be completely fixable, but I can certainly help you reduce it.
Go ahead and do your raw processing as normal, then post the close-up again for me.
Hang on, have you tried plugging it in to a different USB port? Or a different computer entirely? Let's not run out and buy a new calibrator straight away.
Are you sure you've got the device plugged in to your computer? It usually shows "Demo" until you do.
Regarding tutorials, see if it matches this one: https://ask.damiensymonds.net/topic/58525-ccdp-m01/
xmp files are created even when you just apply star ratings to files. If you'd starred them before starting, that's probably what the xmp files are for.