Fatal error: Uncaught Error: Class 'EntityReference_BehaviorHandler_Abstract' not found in /nfs/aesop1/hw00/d64/jzlab/drupal/sites/all/modules/field_default_token/plugins/behavior/FieldDefaultTokenEmptyAlter.class.php:11 Stack trace: #0 {main} thrown in /nfs/aesop1/hw00/d64/jzlab/drupal/sites/all/modules/field_default_token/plugins/behavior/FieldDefaultTokenEmptyAlter.class.php on line 11