In order to troubleshoot the cartridge related errors, Check the Topology view of application in ppaas console to get the ipaddress of the particular instance.
- SSH into the particular instance
- All the logs reside in /tmp
- /tmp/puppet-init.log : Instance boo script
- /tmp/puppet_log : Puppet agent logs if puppet is used for the deployment
- /tmp/agent.screen.log : Python agent logs
Scan through these logs to identify any ERROR or WARN messages which caused the erroneous state.