communication betwenn Calibre and Kobo Aura H2O

I succesfully loaded books from calibre to my Kobo (many times).
But since 6 month about, when I try to delete a book from my Kobo with calibre I got a error message saying: "problem of communication with your device" and I get these information(see below) - What should I do ?


calibre, version 3.6.0
ERREUR : Erreur: Erreur pendant la communication avec le périphérique

CorruptError: database disk image is malformed

Traceback (most recent call last):
File "site-packages\calibre\gui2\device.py", line 88, in run
File "site-packages\calibre\gui2\device.py", line 616, in _delete_books
File "site-packages\calibre\devices\kobo\driver.py", line 509, in delete_books
File "site-packages\calibre\devices\kobo\driver.py", line 2150, in delete_via_sql
File "site-packages\calibre\devices\kobo\driver.py", line 453, in delete_via_sql
File "c:\t\t\apsw-9hooel\apsw-3.13.0-r1\src\cursor.c", line 236, in resetcursor
CorruptError: CorruptError: database disk image is malformed