Thank you for your feedback. The (Code, Issues, Pull requests) permissions are required to access private contribution stats, and unfortunately GitHub does not allow read access on these resources individually nor separate from write access. I anticipate many users will not be able to grant private access and am exploring alternatives in the meantime.
You are able to get metrics on your public contributions by visiting githubtrends.io/wrapped/{user_id}
Let me know if you have any other questions.