[OK]    Composer Version: 1.7.2
[OK]    Dependencies up-to-date.
[OK]    Database connection successful
[OK]    Database schema correct
[FAIL]  The poller (localhost.localdomain) has not completed within the last 5 minutes, check the cron job.
[FAIL]  We have found some files that are owned by a different user than librenms, this will stop you updating automatically and / or rrd files being updated causing graphs to fail.
 [FIX]:
 sudo chown -R librenms:librenms /opt/librenms
 sudo setfacl -d -m g::rwx /opt/librenms/rrd /opt/librenms/logs /opt/librenms/bootstrap/cache/ /opt/librenms/storage/
 sudo chmod -R ug=rwX /opt/librenms/rrd /opt/librenms/logs /opt/librenms/bootstrap/cache/ /opt/librenms/storage/
 Files:
  /opt/librenms/composer.phar
  /opt/librenms/venv
  /opt/librenms/venv/include
  /opt/librenms/venv/lib64
  /opt/librenms/venv/bin
  /opt/librenms/venv/bin/python3
  /opt/librenms/venv/bin/easy_install-3.6
  /opt/librenms/venv/bin/python
  /opt/librenms/venv/bin/pip3
  /opt/librenms/venv/bin/python3.6
  /opt/librenms/venv/bin/activate.fish
  /opt/librenms/venv/bin/easy_install
  /opt/librenms/venv/bin/activate
  /opt/librenms/venv/bin/pip3.6
  /opt/librenms/venv/bin/activate.csh
   and 835 more...