[codychan]

Any updates? calibre suddenly couldn't connect to my Kobo device after I installed the latest version of firmware(Kobo Firmware 4.23.15505) days ago.

Here is the error message when trying to connect:

```
calibre, version 4.22.0
ERROR: Error: Error communicating with device

CorruptError: database disk image is malformed

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 "calibre_plugins.kobotouch_extended.device.driver" , line 483, 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 2485, in update_device_database_collections
File "site-packages\calibre\devices\kobo\driver.py", line 2973, in set_bookshelf
File "c:\t\t\apsw-47cp24d7\src\cursor.c", line 236, in resetcursor
CorruptError: CorruptError: database disk image is malformed

```

And it failed to backup my database too since it failed to connect:

```
On tree page 425139 cell 61: 2nd reference to page 396348
row 2309 missing from index shelfcontent_datemodified_index
row 2309 missing from index sqlite_autoindex_ShelfContent_1
wrong # of entries in index shelfcontent_datemodified_index
wrong # of entries in index sqlite_autoindex_ShelfContent_1

Traceback (most recent call last):
File "site-packages\calibre\gui2\device.py", line 90, in run
File "calibre_plugins.koboutilities.jobs", line 197, in do_device_database_backup
Exception:
*** in database main ***
On tree page 425139 cell 61: 2nd reference to page 396348
row 2309 missing from index shelfcontent_datemodified_index
row 2309 missing from index sqlite_autoindex_ShelfContent_1
wrong # of entries in index shelfcontent_datemodified_index
wrong # of entries in index sqlite_autoindex_ShelfContent_1
```


BUT it actually successfully sent books to my Kobo Forma.