Error exception when clicking on edit button for a note

[Benjamin007]

Hi

I get this error message when I try to edit a note:

`Error
An error occurred. Please start Anki while holding down the shift key, which will temporarily disable the add-ons you have installed.
If the issue only occurs when add-ons are enabled, please use the Tools > Add-ons menu item to disable some add-ons and restart Anki, repeating until you discover the add-on that is causing the problem.
When you've discovered the add-on that is causing the problem, please report the issue on the add-on support site.
Debug info:
Anki 2.1.44 (b2b3275f) Python 3.8.6 Qt 5.14.2 PyQt 5.14.2
Platform: Windows 10
Flags: frz=True ao=True sv=1
Add-ons, last update check: 2022-09-14 12:47:42

Caught exception:
Traceback (most recent call last):
File "anki\config.py", line 37, in get_immutable
File "anki_backend\generated.py", line 662, in get_config_json
File "anki_backend_init_.py", line 106, in _run_command
anki.errors.NotFoundError

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
File "aqt\webview.py", line 36, in cmd
File "aqt\webview.py", line 135, in _onCmd
File "aqt\webview.py", line 580, in _onBridgeCmd
File "aqt\reviewer.py", line 345, in linkHandler
File "aqt\main.py", line 1070, in onEditCurrent
File "aqt_init.py", line 101, in open
File "aqt\editcurrent.py", line 24, in init
File "", line 2, in init
File "anki\hooks.py", line 89, in decorator_wrapper
File "anki\hooks.py", line 81, in repl
File "C:\Users\benjamin.palisse\AppData\Roaming\Anki2\addons21\1463041493\main.py", line 184, in init_highlighter
previous_lang = get_default_lang(mw)
File "C:\Users\benjamin.palisse\AppData\Roaming\Anki2\addons21\1463041493\main.py", line 84, in get_default_lang
addon_conf = mw.col.conf['syntax_highlighting_conf']
File "anki\config.py", line 51, in getitem
File "anki\config.py", line 39, in get_immutable
KeyError
`

The note was created before I had installed the syntax-highlighting add-on.

here is the content of the note:
Front:
An dieser Dynamaxiemierung eben war etwas faul<br>

Back:
il y avait vraiment qcq d'étrange dans cette dynamax<br>

Thanks, please tell me if I can help or if I should provide more information.