[tarcaz]

Anyone can help me?
The device Kindle 3rd gen. disconnects from Ubuntu when I send ebook via Calibre.
I keep seeing the device in Calibre but the device is off the computer.

I get this error report:

calibre, version 3.21.0
ERROR: Error: Error communicating with device

[Errno 2] No such file or directory: '/media/tarcizio/Kindle/'

Traceback (most recent call last):
File "/usr/lib/calibre/calibre/gui2/device.py", line 87, in run
self.result = self.func(*self.args, **self.kwargs)
File "/usr/lib/calibre/calibre/gui2/device.py", line 591, in _upload_books
metadata=metadata, end_session=False)
File "/usr/lib/calibre/calibre/devices/usbms/driver.py", line 306, in upload_books
path = self._sanity_check(on_card, files)
File "/usr/lib/calibre/calibre/devices/usbms/device.py", line 937, in _sanity_check
sanity_check(on_card, files, self.card_prefix(), self.free_space())
File "/usr/lib/calibre/calibre/devices/usbms/device.py", line 185, in free_space
stats = os.statvfs(self._main_prefix)
OSError: [Errno 2] No such file or directory: '/media/tarcizio/Kindle/'