[ownedbycats]

Received this error upon Kobo Utilities updating my #lastread column:

calibre, version 7.8.0
ERROR: Unhandled exception: <b>TypeError</b>:'datetime.datetime' object does not support item assignment

calibre 7.8  embedded-python: True
Windows-10-10.0.19045-SP0 Windows ('64bit', 'WindowsPE')
('Windows', '10', '10.0.19045')
Python 3.11.5
Windows: ('10', '10.0.19045', 'SP0', 'Multiprocessor Free')
Interface language: None
EXE path: C:\Program Files\Calibre2\calibre.exe
Successfully initialized third party plugins: DeACSM (0, 0, 16) && Gather KFX-ZIP (from KFX Input) (2, 10, 0) && DeDRM (10, 0, 9) && Package KFX (from KFX Input) (2, 10, 0) && Action Chains (1, 20, 1) && Baen (1, 1, 0) && Barnes & Noble (1, 5, 4) && CalibreSpy (1, 0, 92) && Comments Cleaner (1, 13, 0) && Count Pages (1, 13, 6) && Editor Chains (1, 1, 6) && Embed Comic Metadata (1, 6, 6) && EpubCheck (0, 2, 5) && EpubMerge (2, 18, 0) && EpubSplit (3, 7, 0) && Extract ISBN (1, 6, 2) && FanFicFare (4, 33, 0) && Fantastic Fiction (1, 7, 0) && Favourites Menu (1, 3, 1) && Find Duplicates (1, 10, 9) && Generate Cover (2, 3, 4) && GetFileName (0, 2, 0) && Goodreads (1, 8, 1) && Import List (1, 9, 4) && Job Spy (1, 0, 239) && KFX metadata reader (from KFX Input) (2, 10, 0) && From KFX (2, 10, 0) && KFX Input (2, 10, 0) && Kindle hi-res covers (0, 5, 1) && KindleUnpack - The Plugin (0, 83, 1) && Kobo Books (1, 9, 2) && Kobo Metadata (1, 5, 0) && Kobo Utilities (2, 16, 13) && KoboTouchExtended (3, 6, 7) && Last Modified (0, 8, 5) && Manage Series (1, 5, 2) && Modify ePub (1, 8, 3) && MultiColumnSearch (1, 0, 96) && Obok DeDRM (7, 2, 1) && Open With (1, 8, 3) && Overdrive Link (2, 57, 0) && Quality Check (1, 13, 10) && Reading Goal (1, 5, 2) && Reading List (1, 15, 2) && Search The Internet (1, 11, 2) && SmartEject (2, 5, 0) && Standard Ebooks (1, 0, 0) && Sum Column (0, 3, 3) && View Manager (1, 10, 3) && Walk Search History (1, 5, 4) && Overdrive Link Metadata Source (2, 57, 0)
Traceback (most recent call last):
  File "calibre_plugins.Reading_Goal.main", line 145, in manage_reading_goal
TypeError: 'datetime.datetime' object is not subscriptable

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "calibre_plugins.Reading_Goal.main", line 128, in metadata_changed_event
  File "calibre_plugins.Reading_Goal.main", line 147, in manage_reading_goal
TypeError: 'datetime.datetime' object does not support item assignment

I also can't open Edit Goal or Statistics, presumably this is from trying and failing to autobackup.

EDIT: Setting autobackup to 0 days fixed it.