Warning:  [mysql error 23] Out of resources when opening file './gim18/piwigo_sessions.MYD' (Errcode: 24)

SELECT data
  FROM piwigo_sessions
  WHERE id = '12DA38foiph1nvgn57l714ggnfgnl6'
; in /home/gim18/www/www.gim18.srv.pl/galeria/include/dblayer/functions_mysqli.inc.php on line 830

Warning:  [mysql error 23] Out of resources when opening file './gim18/piwigo_images.MYD' (Errcode: 24)

SELECT DISTINCT(DAYOFMONTH(date_creation)) as period,
  COUNT(DISTINCT id) as nb_images FROM piwigo_images
INNER JOIN piwigo_image_category ON id = image_id
    WHERE (category_id NOT IN (5,6,7,8,9,10,12,624)) AND date_creation BETWEEN '2011-06-01' AND '2011-06-30 23:59:59'
  GROUP BY period; in /home/gim18/www/www.gim18.srv.pl/galeria/include/dblayer/functions_mysqli.inc.php on line 830

Warning:  [mysql error 23] Out of resources when opening file './gim18/piwigo_sessions.MYD' (Errcode: 24)

REPLACE INTO piwigo_sessions
  (id,data,expiration)
  VALUES('12DA38foiph1nvgn57l714ggnfgnl6','pwg_device|s:7:\"desktop\";pwg_mobile_theme|b:0;pwg_show_metadata|b:1;',now())
; in /home/gim18/www/www.gim18.srv.pl/galeria/include/dblayer/functions_mysqli.inc.php on line 830