MySQL hiba

Hiba az alábbi parancs végrehajtása közben:
SELECT `title`,`username` AS `author`,UNIX_TIMESTAMP(`date`) AS `date`,`supertitle`,`subtitle`,`intro`,`content`,`picture`,`tags` FROM `news`,`uniadmin_users` WHERE `author`=`uniadmin_users`.`id` AND `news`.`id_text` = 'bernard-henri-levy-meglepett-hogy-orban-komolyan-gondolja-amit-m' ORDER BY `date` DESC LIMIT 1

1021: Disk full (/tmp/#sql_7f42_0); waiting for someone to free some space...

/var/www/magyarokanagyvilagban.hu/include/general.class.php, 257. sor

uniAdmin v4.4