KOBO Elipsa error communicating with device

For some days now I have problems when I connect my Kobo Elipsa ereader to my computer. Seemingly nothing has changed so this happened out of the blue.

After connecting the device and opening Calibre 7.4 I get the following error message:

calibre, version 7.4.0
ERROR: Error: Error communicating with device

CorruptError: database disk image is malformed

Traceback (most recent call last):
File "calibre/gui2/device.py", line 104, in run
File "calibre/gui2/device.py", line 558, in _books
File "calibre/devices/kobo/driver.py", line 2028, in books
File "src/cursor.c", line 240, in resetcursor
apsw.CorruptError: CorruptError: database disk image is malformed

Anyone seen this and what can be done?

Thanks in advance