Warning: [mysql error 3] Error writing file '/tmp/MYS7uBgb' (Errcode: 28)

SELECT DISTINCT(image_id)
  FROM piwigo_image_category
    INNER JOIN piwigo_images ON id = image_id
  WHERE
    1=1
AND (category_id NOT IN (682,965,603,1133,776,732,924,276,1187,749,750,1164,677,787,1135,1136,798))
  ORDER BY name ASC, file ASC
; in /srv/http/andrew/www/photo/include/dblayer/functions_mysqli.inc.php on line 832