Error report on a single deck

Hi folks! Hoping someone can help me out with this error (text below).

I get this message every time I try to look at cards or browse under one of my decks. The problem only occurs when I look at new cards or click “browse” on this deck, not on other decks. When I look at new cards, this error message pops up once. When I click browse, the error message continuously pops up, and I have to force-close Anki.

I’ve already tried forcing Anki closed, re-installing Anki, and restarting my computer. I would prefer not to delete this deck or revert to an earlier Anki backup if possible!

Anki 2.1.44 (b2b3275f) Python 3.8.6 Qt 5.14.2 PyQt 5.14.2

Platform: Windows 10

Flags: frz=True ao=False sv=2

Add-ons, last update check: 2021-06-13 23:39:26

Caught exception:

Traceback (most recent call last):

File “aqt\browser.py”, line 131, in data

File “anki\cards.py”, line 159, in template

IndexError: list index out of range

Caught exception:

Traceback (most recent call last):

File “aqt\browser.py”, line 131, in data

File “anki\cards.py”, line 159, in template

IndexError: list index out of range

Please use Check Database as instructed to at the top of the error message.

Thanks!!!