When I was in the middle of creating new cards I received this error twice in a row.
A fatal error occurred, and Anki must close. Please report this message on the forums.
Anki 2.1.49 (dc80804a) Python 3.8.6 Qt 5.14.2 PyQt 5.14.2
Platform: Windows 10
Flags: frz=True ao=False sv=?
Add-ons, last update check: 2022-03-02 16:09:38
Caught exception:
Traceback (most recent call last):
File “aqt\taskman.py”, line 101, in on_closures_pending
File “aqt\taskman.py”, line 71, in
File "aqt\operations_init.py", line 214, in wrapped_done
File “concurrent\futures_base.py”, line 432, in result
File “concurrent\futures_base.py”, line 388, in get_result
File “concurrent\futures\thread.py”, line 57, in run
File "aqt\operations_init.py", line 199, in wrapped_op
File “aqt\editor.py”, line 544, in
File “anki\notes.py”, line 191, in fields_check
File “anki_backend\generated.py”, line 355, in note_fields_check
File "anki_backend_init.py", line 126, in _run_command
pyo3_runtime.PanicException: called Result::unwrap() on an Err value: PoisonError { … }