dans la partie admin, en cliquant sur le lien "éléments non liés" j'ai le message suivant :

SELECT DISTINCT(image_id)
  FROM pwg_image_category
  WHERE category_id IN ()
;
[mysql error 1064] You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ')' at line 3


Warning: mysql_fetch_array(): supplied argument is not a valid MySQL result resource in D:\serveur\PWG_new\include\functions.inc.php on line 858