This simply means that in PPM_SERVER_INSTANCE table, that node is listed as active when it's not.
The message is generated by the fix for QCCR1L26787: Non-services-enabled nodes under certain conditions insert indefinitely into JMS_MESSAGES. Subsequent startup of another node may cause a constraint violation on JMS_MESSAGES
It shows the fix is doing its job, so the message is not a problem and you can ignore it.
If you still want it to go away, just take a backup and delete the contents of PPM_SERVER_INSTANCE table when your cluster is down.
If you find that this or any post resolves your issue, please be sure to mark it as an accepted solution.