I am setting up an unsecured nifi cluster on 3 google cloud console vms. I have set each individual instance to run, and when I open the url, initially I get a message saying the cluster is still electing a control node, which I expected, but then consequently the message changes to "An unexpected error has occurred. Please check the logs for additional details." I have looked in the logs, and can't see anything that shows an error, just the expected heartbeads from all three vms. Is this a problem anyone has come across before?