Error on Mac when starting Anki

This message keeps popping up. What should I do? The tools approach has not worked.

Error
An error occurred. Please use Tools > Check Database to see if that fixes the problem.
If problems persist, please report the problem on our support site. Please copy and paste the information below into your report.
Anki 2.1.44 (b2b3275f) Python 3.8.6 Qt 5.14.2 PyQt 5.14.2
Platform: Mac 10.16
Flags: frz=True ao=False sv=2
Add-ons, last update check: 2024-09-09 13:08:09

Caught exception:
Traceback (most recent call last):
File “aqt/customstudy.py”, line 128, in accept
AttributeError: ‘CustomStudy’ object has no attribute ‘radioIdx’

Update your very old Anki version: https://apps.ankiweb.net/

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