Having issue when trying to edit metadata on books.

[Aakashi]

calibre, version 7.13.0
ERROR: Unhandled exception: <b>KeyError</b>:'calendar_start_day_of_week'

calibre 7.13* embedded-python: True
Windows-10-10.0.22621-SP0 Windows ('64bit', 'WindowsPE')
('Windows', '10', '10.0.22621')
Python 3.11.5
Windows: ('10', '10.0.22621', 'SP0', 'Multiprocessor Free')
Interface language: None
This is the error it throws:

EXE path: C:\Program Files\Calibre2\calibre.exe
Successfully initialized third party plugins: WordDumb (3, 32, 0)
Traceback (most recent call last):
File "calibre\gui2\actions\edit_metadata.py", line 430, in edit_metadata
File "calibre\gui2\actions\edit_metadata.py", line 453, in edit_metadata_for
File "calibre\gui2\actions\edit_metadata.py", line 483, in do_edit_metadata
File "calibre\gui2\metadata\single.py", line 1309, in edit_metadata
File "calibre\gui2\metadata\single.py", line 104, in __init__
File "calibre\gui2\metadata\single.py", line 156, in setupUi
File "calibre\gui2\metadata\single.py", line 311, in create_basic_metadata_widgets
File "calibre\gui2\metadata\basic_widgets.py", line 1951, in __init__
File "calibre\gui2\metadata\basic_widgets.py", line 182, in __init__
File "calibre\gui2\widgets2.py", line 750, in __init__
KeyError: 'calendar_start_day_of_week'

----------------------------------------------------------
Things I have tried:

- clean install
- downgrade to previous version
- using portable version

[kovidgoyal]

You are running from a source checkout. Update the source or unset CALIBRE_DEVELOP_FROM env var.

[Aakashi]

You are a Legend bro, thanks.