Puppet server fails to start on Red Hat Satellite 6.x with 'NameError: cannot load Java class org.jruby.ext.psych.PsychLibrary' due to Puppet being disabled

Issue

• The Puppet server fails to start after restarting the Satellite services.

  Mar 06 15:50:48 gtnrc-sat01v.cms.colt systemd[1]: Failed to start puppetserver Service.
  Mar 06 15:50:48 gtnrc-sat01v.cms.colt systemd[1]: puppetserver.service: Service RestartSec=100ms expired, scheduling restart.
  Mar 06 15:50:48 gtnrc-sat01v.cms.colt systemd[1]: puppetserver.service: Scheduled restart job, restart counter is at 12727.
  Mar 06 15:50:48 gtnrc-sat01v.cms.colt systemd[1]: Stopped puppetserver Service.
  Mar 06 15:50:48 gtnrc-sat01v.cms.colt systemd[1]: Starting puppetserver Service...
  Mar 06 15:50:56 gtnrc-sat01v.cms.colt puppetserver[1761305]: NameError: cannot load Java class org.jruby.ext.psych.PsychLibrary