[Observium] observium just stops after switching to subscription.

If i run discovery.php -h none I get no output.

The only way I could get it going again was to uncomment this line in common.php if (file_exists($config['install_dir']."/includes/debug/ref.inc.php")) { include($config['install_dir']."/includes/debug/ref.inc.php"); $ref_loaded = TRUE; }

Whats my problem? I´am running centos.

Thomas