error sql when trying to publish a discussion or response

[JuPo]

Hello,

I have a error sql when trying to publish a discussion or response in my forum:

PHP Code:

(SELECT permissions, permissions2, FIND_IN_SET(forumid, '40,29,28,-1') AS pos, forumid
FROM moderator
WHERE userid = 23 AND forumid IN (40,29,28,-1)
ORDER BY pos ASC
LIMIT 1)
UNION
(SELECT permissions, permissions2, 0, forumid
FROM moderator
WHERE userid = 23 AND forumid = -1
); 


or this to edit a post:

PHP Code:

            SELECT dateline, thumbnail_dateline, filename, filesize, visible, attachmentid, counter,                IF(thumbnail_filesize > 0, 1, 0) AS hasthumbnail, thumbnail_filesize,                attachmenttype.thumbnail AS build_thumbnail, attachmenttype.newwindow            FROM attachment            LEFT JOIN attachmenttype AS attachmenttype USING (extension)            WHERE postid = 34            ORDER BY attachmentid; 


any can help me pls ?

thank you very much...