[RustyHelen]

We have multiple Kindle readers and use Calibre as a library source. Have many books in Calibre. We have been using both the Kindles and Calibre successfully for many years, maybe 8 or 9 in total. Went to load books today and am getting a fault message. Calibre tells me that the "Amazon Kindle is detected" however also get a pop up saying "Error communicating with Device. calibre, version 4.17.0
ERROR: Error: Error communicating with device

Failed to access files in the main memory of your device. You should contact the device manufacturer for support. Common fixes are: try a different USB cable/USB port on your computer. If you device has a "Reset to factory defaults" type of setting somewhere, use it. Underlying error: [Errno 1] Operation not permitted: u'/Volumes/Kindle/driveinfo.calibre'

Traceback (most recent call last):
File "site-packages/calibre/gui2/device.py", line 90, in run
File "site-packages/calibre/gui2/device.py", line 473, in _get_device_information
File "site-packages/calibre/devices/usbms/driver.py", line 163, in get_device_information
IOError: Failed to access files in the main memory of your device. You should contact the device manufacturer for support. Common fixes are: try a different USB cable/USB port on your computer. If you device has a "Reset to factory defaults" type of setting somewhere, use it. Underlying error: [Errno 1] Operation not permitted: u'/Volumes/Kindle/driveinfo.calibre'"

And the Kindle memory is not showing and nor is the icon to send books to Kindle. So I am unable to send books to the Kindle. I have reset the Kindle, I have used both the latest version of Calibre 4.17 and the prior Version that I had with the same result. I have tried multiple connection cords and I have been in touch with Amazon Help. We use an Apple Macbook as a desktop and have been using this for 7 years successfully.

This is a problem that has just popped up. Anyone got any suggestions? TIA Rusty