ERR_NGROK_SHIP_POOL_EXECUTION_ROLE_NAME_BAD_START: The 'execution_role_arn' role name NAME must start with 'ngrok-ship-' - ngrok documentation

What does ERR_NGROK_SHIP_POOL_EXECUTION_ROLE_NAME_BAD_START mean?

ngrok returns ERR_NGROK_SHIP_POOL_EXECUTION_ROLE_NAME_BAD_START with this message:

The 'execution_role_arn' role name <NAME> must start with 'ngrok-ship-'. The recommended permissions policy grants iam:PassRole only on that prefix.

Where can I get more help with ERR_NGROK_SHIP_POOL_EXECUTION_ROLE_NAME_BAD_START?

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