[Terisa de morgan]

I think I've editing something wrong as I'm getting this when I'm trying to add a custom challenge (or editing the anual challenge):

Spoiler:

calibre 7.23 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: es
EXE path: C:\Program Files\Calibre2\calibre.exe
Successfully initialized third party plugins: DeACSM (0, 0, 16) && Gather KFX-ZIP (from KFX Input) (2, 19, 0) && DeDRM (10, 0, 9) && Package KFX (from KFX Input) (2, 19, 0) && Action Chains (1, 20, 8) && Annotations (1, 17, 13) && Barnes & Noble (1, 5, 6) && Comments Cleaner (1, 15, 0) && Count Pages (2, 11, 2) && Diaps Editing Toolbag (0, 5, 0) && Editor Chains (1, 1, 9) && EpubMerge (3, 2, 0) && EpubSplit (3, 10, 0) && Ex Libris (1, 1, 21) && Extract ISBN (1, 6, 5) && Extract ToCs (1, 0, 0) && Fantastic Fiction (1, 7, 1) && Favourites Menu (1, 3, 1) && Find Duplicates (1, 10, 9) && GR Author Notes (1, 1, 1) && Generate Cover (2, 3, 4) && GetFileName (0, 2, 0) && Goodreads (1, 8, 2) && Goodreads Sync (1, 16, 11) && GoodreadsAuthor (0, 0, 2) && Hyphenate This! (0, 1, 3) && Import List (1, 9, 4) && KFX metadata reader (from KFX Input) (2, 19, 0) && From KFX (2, 19, 0) && KFX Input (2, 19, 0) && KindleUnpack - The Plugin (0, 83, 1) && Kobo Utilities (2, 17, 2) && KoboTouchExtended (3, 7, 3) && Modify ePub (1, 8, 5) && My Tools (0, 2, 4) && Obok DeDRM (10, 0, 3) && OverDrive Libby (0, 2, 2) && Overdrive Link (2, 57, 0) && Quality Check (1, 13, 16) && Reading Goal (1, 8, 2) && Reading List (1, 15, 4) && Save Composite Custom Columns (1, 1, 1) && Search The Internet (1, 11, 3) && SmartEject (2, 6, 0) && Smashwords Metadata (1, 0, 2) && User Category (1, 6, 1) && View Manager (1, 10, 3) && Overdrive Link Metadata Source (2, 57, 0)
Traceback (most recent call last):
File "calibre_plugins.Reading_Goal.main", line 1750, in edit_challenge
IndexError: list index out of range