Salesforce DevOps Center accessing your organization Github Repo
The steps to fix new project error when setting up Salesforce DevOps center using organization Github repos.
After going through the Salesforce help article, here are the steps how I fixed the issue.
Step 5: Once I have access, I go to my DevOps center org, and Click your profile icon, then select Settings. and then I can see Authentication Settings for External Systems
Step 6: Delete DevOps Center GitHub. and then I can create a new project accessing my organization org by authenticating my Github account again.
Hope these steps can help you set up your DevOps center with your organization Github repos.