SELECT `t1`.`group_id` AS id, `t1`.`group_name`, `t1`.`group_descr` AS `descr`, `t1`.`ename`, `t1`.`group_razdel`, `t2`.`name` AS `razdel`, `t1`.`group_img`, IF(`t1`.`group_img` IS NULL, 1, 0) AS `is_null`, `t1`.`group_class`, `t1`.`ename`, `t1`.`lang` FROM `grop` as `t1` JOIN `razdel` as `t2` ON `t1`.`group_razdel` = `t2`.`id` WHERE `t1`.`group_class` = AND `t1`.`group_hide` = 0 AND `t1`.`lang`='rus' ORDER BY `group_id` ASC

You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'AND
		`t1`.`group_hide` = 0
	AND
		`t1`.`lang`='rus'
	ORDER BY `group_id` ASC' at line 21

/home/woodprom/woodprom.com/docs/../core/classes/sql/catalog.p(57:17)

sql	`/home/woodprom/woodprom.com/docs/../core/classes/sql/catalog.p(57:17)`
selectGroupByGroup	`/home/woodprom/woodprom.com/docs/../core/classes/catalog/catalog.p(98:20)`
out	`/home/woodprom/woodprom.com/docs/../core/classes/catalog/catalog.p(98:2)`
subgroup	`/home/woodprom/woodprom.com/docs/cat/cat.html(9:25)`
append	`/home/woodprom/woodprom.com/docs/cat/cat.html(8:8)`
content	`/home/woodprom/woodprom.com/docs/auto.p(46:10)`
code	`/home/woodprom/woodprom.com/docs/../core/lib.p(9:18)`
connect	`/home/woodprom/woodprom.com/docs/../core/lib.p(9:2)`
dbconnect	`/home/woodprom/woodprom.com/docs/auto.p(42:11)`