ERR_NGROK_SHIP_APP_REPOSITORY_WORKFLOW_ALREADY_EXISTS: Workflow PATH in this repository is already connected to another app - ngrok documentation

What does ERR_NGROK_SHIP_APP_REPOSITORY_WORKFLOW_ALREADY_EXISTS mean?

ngrok returns ERR_NGROK_SHIP_APP_REPOSITORY_WORKFLOW_ALREADY_EXISTS with this message:

Workflow <PATH> in this repository is already connected to another app.

Where can I get more help with ERR_NGROK_SHIP_APP_REPOSITORY_WORKFLOW_ALREADY_EXISTS?

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