I have owed a kobo ereader (kobolibraH2O) for some time and it synched ok with my book collection. As did my new Libra2. Suddenly while the book and series info continued to synch perfectly none of the collection info was added.
I reported this as a Calibre bug and was told by Kovid that it would be better to bring the problem here, preferably wirh a debug dump.
I took the dump. It contained the error message
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Driver: KoboTouch'
DEBUG: 0.5 device_driver_name - could not load extended driver. Exception= No module named 'calibre_plugins.kobotouch_extended'
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In fact I have specified & customised the Kobo Touch driver.
I factory reset my new Libra6 - which interestingly does NOT erase the Collection info. I had to do that manually. Set up a new Calibre library with a small set of books and proceeded to test against my now virgin Libra 2.
the forgoing is one error message. The cumulative log can be found ataaaaaaa;-
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https://drive.google.com/open?id=1kU...4&usp=drive_fs
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Please Please someone help!