I was subscribed to a deck (ankor) and months later one time I synced and two decks were downloaded to anki. One of the decks was only partially filled with cards. When I deleted that deck I got this error message.
Error message (don't change this)
Anki 23.10.1 (fac9e0ee) Python 3.9.15 Qt 6.6.0 PyQt 6.6.0
Platform: Windows-10-10.0.22621
Flags: frz=True ao=True sv=3
Add-ons, last update check: 2024-01-07 08:34:30
Traceback (most recent call last):
File "aqt.deckbrowser", line 298, in <lambda>
File "decorator", line 232, in fun
File "anki.hooks", line 89, in decorator_wrapper
File "anki.hooks", line 81, in repl
File "C:\Users\dphar\AppData\Roaming\Anki2\addons21\1322529746\gui\deckbrowser.py", line 33, in _after_anki_deck_deleted
unsubscribe_from_deck_and_uninstall(deck_ankihub_id)
File "C:\Users\dphar\AppData\Roaming\Anki2\addons21\1322529746\main\deck_unsubscribtion.py", line 12, in unsubscribe_from_deck_and_uninstall
client.unsubscribe_from_deck(ah_did)
File "C:\Users\dphar\AppData\Roaming\Anki2\addons21\1322529746\ankihub_client\ankihub_client.py", line 610, in unsubscribe_from_deck
raise AnkiHubHTTPError(response)
1322529746.ankihub_client.ankihub_client.AnkiHubHTTPError: AnkiHub request error: 500 Internal Server Error