sql error for system modules

a sql error for system modules :

user warning: Got error 28 from storage engine query: SELECT DISTINCT b.* FROM blocks b LEFT JOIN blocks_roles r ON b.module = r.module AND b.delta = r.delta WHERE b.theme = 'gundishahpur' AND b.status = 1 AND (r.rid IN (2,3) OR r.rid IS NULL) ORDER BY b.region, b.weight, b.module in /var/www/vhosts/irdrupal.com/httpdocs/includes/database.mysql.inc on line 172

I disable all modules but this error not fixed.
please help me