ERR_NGROK_SHIP_GITHUB_REPOSITORY_CONFLICT: GitHub reported a conflict for repository REPO: REASON - ngrok documentation

What does ERR_NGROK_SHIP_GITHUB_REPOSITORY_CONFLICT mean?

ngrok returns ERR_NGROK_SHIP_GITHUB_REPOSITORY_CONFLICT with this message:

GitHub reported a conflict for repository <REPO>: <REASON>

Where can I get more help with ERR_NGROK_SHIP_GITHUB_REPOSITORY_CONFLICT?

Email support@ngrok.com and include the error code.