ERR_NGROK_SHIP_REPLICA_LOGS_CLOUDWATCH_LOG_GROUP_UNAVAILABLE: The replica's CloudWatch log group is unavailable - ngrok documentation

What does ERR_NGROK_SHIP_REPLICA_LOGS_CLOUDWATCH_LOG_GROUP_UNAVAILABLE mean?

ngrok returns ERR_NGROK_SHIP_REPLICA_LOGS_CLOUDWATCH_LOG_GROUP_UNAVAILABLE with this message:

The replica's CloudWatch log group is unavailable.

Where can I get more help with ERR_NGROK_SHIP_REPLICA_LOGS_CLOUDWATCH_LOG_GROUP_UNAVAILABLE?

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