Issue when using the REST API through a load balancer:
The following error is displayed in the REST response:
"code" : 45147,
"error" : "This JCP is currently not connected with a primary work process. Please retry the REST call later.",
"details" : "The Application is currently not available."
Release : 12.3
Component : Automation Engine
This can happen when there are phantom JCP processes running.
The load balancer sees the JCP process and sends the request, but the process is not connected to the AE.
Restart all JCP processes so the load balancer only sees valid processes.