11:43:30 ERROR: SQLSTATE[HY000]: General error: 1021 Disk full (/var/tmp/#sql_27b7_0); waiting for someone to free some space...

The sql is: SELECT t1.*, t2.category FROM hw_article AS t1 LEFT JOIN hw_relation AS t2 ON t1.id = t2.id wHeRe t1.sticky != '0' AND t2.type = 'article' AND t1.addedDate <= '2023-01-31 11:43:30' AND t1.status = 'normal' AND t2.category IN ('22') oRdEr bY t1.`sticky` desc,t1.`addedDate` desc

in /var/www/html/hw/hw_gw/system/lib/base/dao/dao.class.php on line 1306, last called by /var/www/html/hw/hw_gw/system/lib/base/dao/dao.class.php on line 708 through function sqlError.
in /var/www/html/hw/hw_gw/system/framework/base/router.class.php on line 2120 when visiting /index.php?m=article&f=browse&t=mhtml&moduleID=22