$query['casContactIdField'] = 'e.contact_id';
$query['casEntityIdField'] = 'e.id';
$query['casContactTableAlias'] = NULL;
- $query['casDateField'] = str_replace('event_', 'r.', $schedule->start_action_date);
+ $query['casDateField'] = str_replace('event_', 'r.', ($schedule->start_action_date ?? ''));
if (empty($query['casDateField']) && $schedule->absolute_date) {
$query['casDateField'] = "'" . CRM_Utils_Type::escape($schedule->absolute_date, 'String') . "'";
}