Calibre won't connect to Kobo Aura HD

I'm hoping someone can help me. I updated to the latest version of calibre and when I tried connecting my Kobo I received this message:

Error communicating with device:

database disk image is malformed

Traceback (most recent call last):
File "site-packages\calibre\gui2\device.py", line 85, in run
File "site-packages\calibre\gui2\device.py", line 480, in _books
File "site-packages\calibre\devices\kobo\driver.py", line 1749, in books
DatabaseError: database disk image is malformed

Any help would be greatly appreciated! :thanks: