[kaisersozee]

Getting this error - any ideas please....

calibre, version 5.22.1
ERROR: Unhandled exception: <b>KeyError</b>:'user_categories'

calibre 5.22.1 embedded-python: True is64bit: False
Windows-10-10.0.19041 Windows ('32bit', 'WindowsPE')
32bit process running on 64bit windows
('Windows', '10', '10.0.19041')
Python 3.8.5
Windows: ('10', '10.0.19041', '', 'Multiprocessor Free')
Interface language: None
Successfully initialized third party plugins: EpubMerge (2, 11, 0) && EpubSplit (3, 0, 0) && Fantastic Fiction (1, 4, 0) && Find Duplicates (1, 6, 3) && Goodreads (1, 5, 1)
Traceback (most recent call last):
File "calibre\gui2\add.py", line 516, in process_duplicate
StopIteration

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "calibre\db\backend.py", line 112, in __getitem__
KeyError: 'user_categories'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "calibre\gui2\library\models.py", line 583, in current_changed
File "calibre\gui2\library\models.py", line 566, in get_book_display_info
File "calibre\db\legacy.py", line 696, in get_metadata
File "calibre\db\cache.py", line 687, in get_metadata
File "calibre\db\cache.py", line 372, in _get_metadata
File "calibre\db\backend.py", line 114, in __getitem__
KeyError: 'user_categories'