Hi,
Whenever I connect my Kindle, I get two errors I cannot resolve:
1. as in screenshot-1
2. as in screenshot-2
1. 'Unknown' is not in my Kindle Documents folder, yet it appears in the Calibre database every time I connect even if I previously deleted it.
2. I can not, I'm afraid, even begin to understand that message

Could anybody help please?
Many thanks,
David