Add on issue, card won't open

hi, this is the message I get when trying to open certain cards, please help me.

Anki 2.1.35 (84dcaa86) Python 3.8.0 Qt 5.14.2 PyQt 5.14.2
Platform: Mac 10.16
Flags: frz=True ao=False sv=2
Add-ons, last update check: 2021-03-06 18:12:22

Caught exception:
Traceback (most recent call last):
File “aqt/”, line 493, in handler
File “aqt/”, line 483, in
File “aqt/”, line 866, in
File “aqt/”, line 883, in _onRowChanged
File “aqt/”, line 433, in setNote
File “aqt/”, line 447, in loadNote
File “anki/”, line 104, in items
File “anki/”, line 104, in
IndexError: list index out of range

Try disabling add-ons or updating to the latest version to see if the issue persists.

See When problems occur - Frequently Asked Questions for details.