It is interesting in a way that both the desktop version and the mobile version are crashing. I am not particularly certain about the cause of the problem.
Here is the debug code the internal trouble shooter came up with.
Would you be able to figure out what I need to do?
Anki 25.07.5 (7172b2d2) (ao)
Python 3.13.5 Qt 6.9.1 PyQt 6.9.1
Platform: Windows-11-10.0.26100-SP0
Traceback (most recent call last):
File “C:\Users\hanuk\AppData\Local\AnkiProgramFiles.venv\Lib\site-packages\aqt\main.py”, line 288, in on_focus_changed
gui_hooks.focus_did_change(new, old)
~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^
File “C:\Users\hanuk\AppData\Local\AnkiProgramFiles.venv\Lib\site-packages_aqt\hooks.py”, line 3496, in call
hook(new, old)
~~~~^^^^^^^^^^
File “C:\Users\hanuk\AppData\Local\AnkiProgramFiles.venv\Lib\site-packages\aqt\main.py”, line 881, in on_focus_did_change
self.reviewer.refresh_if_needed()
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
File “C:\Users\hanuk\AppData\Local\AnkiProgramFiles.venv\Lib\site-packages\aqt\reviewer.py”, line 204, in refresh_if_needed
self.nextCard()
~~~~~~~~~~~~~^^
File “C:\Users\hanuk\AppData\Local\AnkiProgramFiles.venv\Lib\site-packages\aqt\reviewer.py”, line 262, in nextCard
self._showQuestion()
~~~~~~~~~~~~~~~~~~^^
File “C:\Users\hanuk\AppData\Local\AnkiProgramFiles.venv\Lib\site-packages\aqt\reviewer.py”, line 405, in _showQuestion
gui_hooks.reviewer_did_show_question(c)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^
File “C:\Users\hanuk\AppData\Local\AnkiProgramFiles.venv\Lib\site-packages_aqt\hooks.py”, line 4293, in call
hook(card)
~~~~^^^^^^
File “C:\Users\hanuk\AppData\Roaming\Anki2\addons21\1044112126\reviewer.py”, line 282, in _on_card_updated
for card_id in self._schedule_service.get_upcoming_card_ids():
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
File “C:\Users\hanuk\AppData\Roaming\Anki2\addons21\1044112126\reviewer.py”, line 182, in get_upcoming_card_ids
card_ids = card_fetcher(scheduler=scheduler) # type: ignore[arg-type]
File “C:\Users\hanuk\AppData\Roaming\Anki2\addons21\1044112126\reviewer.py”, line 226, in _get_upcoming_card_ids_v3
queued_cards = scheduler.get_queued_cards(fetch_limit=self._fetch_limit)
File “C:\Users\hanuk\AppData\Local\AnkiProgramFiles.venv\Lib\site-packages\anki\scheduler\v3.py”, line 55, in get_queued_cards
return self.col._backend.get_queued_cards(
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
fetch_limit=fetch_limit, intraday_learning_only=intraday_learning_only
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
)
^
File “C:\Users\hanuk\AppData\Local\AnkiProgramFiles.venv\Lib\site-packages\anki_backend_generated.py”, line 819, in get_queued_cards
raw_bytes = self._run_command(13, 3, message.SerializeToString())
File “C:\Users\hanuk\AppData\Local\AnkiProgramFiles.venv\Lib\site-packages\anki_backend.py”, line 171, in _run_command
raise backend_exception_to_pylib(err)
anki.errors.InvalidInput: invalid params provided
Error in sys.excepthook:
Traceback (most recent call last):
Traceback (most recent call last):
Original exception was:
Traceback (most recent call last):
Traceback (most recent call last):
Traceback (most recent call last):
File “C:\Users\hanuk\AppData\Local\AnkiProgramFiles.venv\Lib\site-packages_aqt\hooks.py”, line 3496, in call
hook(new, old)
~~~~^^^^^^^^^^
File “C:\Users\hanuk\AppData\Local\AnkiProgramFiles.venv\Lib\site-packages\aqt\main.py”, line 881, in on_focus_did_change
self.reviewer.refresh_if_needed()
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
File “C:\Users\hanuk\AppData\Local\AnkiProgramFiles.venv\Lib\site-packages\aqt\reviewer.py”, line 204, in refresh_if_needed
self.nextCard()
~~~~~~~~~~~~~^^
File “C:\Users\hanuk\AppData\Local\AnkiProgramFiles.venv\Lib\site-packages\aqt\reviewer.py”, line 262, in nextCard
self._showQuestion()
~~~~~~~~~~~~~~~~~~^^
File “C:\Users\hanuk\AppData\Local\AnkiProgramFiles.venv\Lib\site-packages\aqt\reviewer.py”, line 405, in _showQuestion
gui_hooks.reviewer_did_show_question(c)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^
File “C:\Users\hanuk\AppData\Local\AnkiProgramFiles.venv\Lib\site-packages_aqt\hooks.py”, line 4293, in call
hook(card)
~~~~^^^^^^
File “C:\Users\hanuk\AppData\Roaming\Anki2\addons21\1044112126\reviewer.py”, line 282, in _on_card_updated
for card_id in self._schedule_service.get_upcoming_card_ids():
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
File “C:\Users\hanuk\AppData\Roaming\Anki2\addons21\1044112126\reviewer.py”, line 182, in get_upcoming_card_ids
card_ids = card_fetcher(scheduler=scheduler) # type: ignore[arg-type]
File “C:\Users\hanuk\AppData\Roaming\Anki2\addons21\1044112126\reviewer.py”, line 226, in _get_upcoming_card_ids_v3
queued_cards = scheduler.get_queued_cards(fetch_limit=self._fetch_limit)
File “C:\Users\hanuk\AppData\Local\AnkiProgramFiles.venv\Lib\site-packages\anki\scheduler\v3.py”, line 55, in get_queued_cards
return self.col._backend.get_queued_cards(
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
fetch_limit=fetch_limit, intraday_learning_only=intraday_learning_only
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
)
^
File “C:\Users\hanuk\AppData\Local\AnkiProgramFiles.venv\Lib\site-packages\anki_backend_generated.py”, line 819, in get_queued_cards
raw_bytes = self._run_command(13, 3, message.SerializeToString())
File “C:\Users\hanuk\AppData\Local\AnkiProgramFiles.venv\Lib\site-packages\anki_backend.py”, line 171, in _run_command
raise backend_exception_to_pylib(err)
anki.errors.InvalidInput: invalid params provided
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File “C:\Users\hanuk\AppData\Local\AnkiProgramFiles.venv\Lib\site-packages\aqt\main.py”, line 288, in on_focus_changed
gui_hooks.focus_did_change(new, old)
~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^
File “C:\Users\hanuk\AppData\Local\AnkiProgramFiles.venv\Lib\site-packages_aqt\hooks.py”, line 3499, in call
self._hooks.remove(hook)
~~~~~~~~~~~~~~~~~~^^^^^^
ValueError: list.remove(x): x not in list
Error in sys.excepthook:
Traceback (most recent call last):
Traceback (most recent call last):
Original exception was:
Traceback (most recent call last):
Traceback (most recent call last):
===Add-ons (active)===
(add-on provided name [Add-on folder, installed at, version, is config changed])
AMBOSS Official Medical School Step Shelf Study Resource [‘1044112126’, 2998-12-31T18:00, ‘None’, ‘’]
Anki Remote - Customize [‘693153301’, 2024-11-03T14:22, ‘None’, mod]
AnkiHub [‘1322529746’, 2025-07-30T06:13, ‘None’, ‘’]
Colorful Tags Hierarchical Tags [‘594329229’, 2022-09-15T10:06, ‘None’, ‘’]
Custom Background Image and Gear Icon [‘1210908941’, 2025-06-22T08:27, ‘None’, mod]
Fastbar- with nightmode support [‘46611790’, 2025-01-27T16:52, ‘None’, ‘’]
Image Occlusion Enhanced [‘1374772155’, 2022-04-09T02:15, ‘None’, ‘’]
Postpone cards review [‘1152543397’, 2023-04-14T21:29, ‘None’, ‘’]
Review Heatmap [‘1771074083’, 2022-06-29T20:43, ‘None’, ‘’]
Speed Focus Mode auto-alert auto-reveal auto-answer [‘1046608507’, 2022-12-16T05:24, ‘None’, ‘’]
True Retention [‘613684242’, 2017-11-19T14:43, ‘None’, ‘’]
===IDs of active AnkiWeb add-ons===
1044112126 1046608507 1152543397 1210908941 1322529746 1374772155 1771074083 46611790 594329229 613684242 693153301
===Add-ons (inactive)===
(add-on provided name [Add-on folder, installed at, version, is config changed])