Forbidden for url error when creating challenge

[nikepupu]

Following errors occurred while validating the challenge config: 403 Client Error: Forbidden for url: https://eval.ai/api/challenges/challenge/challenge_host_team/xxxx/create_or_update_github_challenge/ There was an error while creating an issue: 404 {"message": "Not Found", "documentation_url": "https://docs.github.com/rest/repos/repos#get-a-repository"}

What should I do to solve this issue?