ERR_NGROK_SHIP_APP_PULL_CREDENTIAL_REGISTRY_CONFLICT: Image repository REPOSITORY is not on HOST, the registry the credential signs in to - ngrok documentation

What does ERR_NGROK_SHIP_APP_PULL_CREDENTIAL_REGISTRY_CONFLICT mean?

ngrok returns ERR_NGROK_SHIP_APP_PULL_CREDENTIAL_REGISTRY_CONFLICT with this message:

Image repository <REPOSITORY> is not on <HOST>, the registry the credential signs in to.

Where can I get more help with ERR_NGROK_SHIP_APP_PULL_CREDENTIAL_REGISTRY_CONFLICT?

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