DEFINE YOUR CULTURE

My ERROR [256] Database Error: Disk full (/var/tmp/#sql_939_0); waiting for someone to free some space...
Query: SELECT menu.*, cv.value as stickypost, cv2.value as post_date, mf.filename, mf2.filename as downloadable, txt.descr FROM `menu` INNER JOIN `custom_vars` cv ON cv.parent=menu.id AND cv.property='stickypost' INNER JOIN `custom_vars` cv2 ON cv2.parent=menu.id AND cv2.property='post_date' LEFT JOIN `media_files` mf ON mf.parent=menu.id and typename='feature' LEFT JOIN `media_files` mf2 ON mf2.parent=menu.id AND mf2.typename='downloadable' LEFT JOIN txtcontent txt ON txt.parent=menu.id and txt.current='1' WHERE menu.parent='3400' AND menu.type='media-article' ORDER BY cv.value DESC, cv2.value DESC
Fatal error on line 110 in file /var/www/vhosts/performancelab.com.au/httpdocs/includes/dblib.inc PHP 7.0.33 (Linux)
Aborting...