crontab SQL error

Hello,

I am new to signup.

When cron.php is running, this error is displayed:

# warning: pg_query() [function.pg-query]: Query failed: ERREUR: syntaxe en entrée invalide pour le type interval : « s.reminder_days_before days » LINE 1: ...EN tz.offset_dst ELSE tz."offset" END) - INTERVAL 's.reminde... ^ in /home/html/drupal/includes/database.pgsql.inc on line 139.
# user warning: query: SELECT n.title, n.nid, n.type, s.reminder_email, s.forwarding_email, e.event_start AS event_start, e.timezone FROM node n INNER JOIN signup s ON s.nid = n.nid INNER JOIN event e ON n.nid = e.nid INNER JOIN event_timezones tz ON e.timezone = tz.timezone WHERE (s.send_reminder = 1) AND (n.type = 'formation') AND (('2009-08-22 17:21:40' > ((e.event_start - CASE WHEN tz.is_dst = 1 THEN tz.offset_dst ELSE tz."offset" END) - INTERVAL 's.reminder_days_before days'))) AND (('2009-08-22 17:21:40' <= ((e.event_start - CASE WHEN tz.is_dst = 1 THEN tz.offset_dst ELSE tz."offset" END)))) in /home/html/drupal/sites/all/modules/signup/includes/cron.inc on line 46.

The error comes from INTERVAL 's.reminder_days_before days' which is not well merged.

Will investigate and report back. If you can fix it easily, go ahead.

Kind regards,
Jean-Michel