[Carmelocotonto]

Hi, this question is for Davidfor and his plugins. When I connect my kobo Clara with last soft and calibre 4.23 all is ok except the following error:


ConstraintError: UNIQUE constraint failed: Shelf.Id

Traceback (most recent call last):
File "site-packages\calibre\gui2\device.py", line 90, in run
File "site-packages\calibre\gui2\device.py", line 543, in _sync_booklists
File "site-packages\calibre\devices\kobo\driver.py", line 970, in sync_booklists
File "site-packages\calibre\devices\kobo\driver.py", line 2455, in update_device_database_collections
File "site-packages\calibre\devices\kobo\driver.py", line 3034, in check_for_bookshelf
File "c:\t\t\apsw-w7591s5i\src\cursor.c", line 236, in resetcursor
ConstraintError: ConstraintError: UNIQUE constraint failed: Shelf.Id


And I don't know why. Please, can you help me?
I have installed kobo utilities, etc...
Thanks


Edit: I have encountered the error; I was trying to create collections that were already created