Warning: mysql_query() [function.mysql-query]: Unable to save result set in /home/krymov/efros.org/docs/class/DBConnection.php on line 46

System error

Cannot execute query [SELECT id, url, DATE_FORMAT(date,'%Y') AS dat, title, content, scene, gallery_folder_id, teaser, pic, pic_type FROM theater WHERE date <= (SELECT date FROM theater WHERE url='vishnevyi_sad') AND hidden!=1 ORDER BY date DESC LIMIT 2]
Subquery returns more than 1 row