GitHub -> API response with error code

[roydekleijn]

When I try to authenticate with GitHub, I see the following in the logs:

[2023-06-01 22:15:26] production.ERROR: API response with error code {"exception":"[object] (SocialConnect\\Provider\\Exception\\InvalidResponse(code: 0): API response with error code at /var/www/api.example.com/vendor/socialconnect/auth/src/Provider/AbstractBaseProvider.php:228)
[stacktrace]
#0 /var/www/api.example.com/vendor/socialconnect/auth/src/Provider/AbstractBaseProvider.php(298): SocialConnect\\Provider\\AbstractBaseProvider->executeRequest()
#1 /var/www/api.example.com/vendor/socialconnect/auth/src/OAuth2/Provider/GitHub.php(140): SocialConnect\\Provider\\AbstractBaseProvider->request()

What can I do?