数据库出错:

MySQL Query Error: SELECT a.pid,a.uid,a.username,a.shopid,a.title,a.folder,a.filename,a.comments,b.shopname,b.subname FROM modoer_pictures a LEFT JOIN modoer_shops b ON(a.shopid=b.sid) WHERE a.status=1 GROUP BY a.shopid ORDER BY a.addtime DESC LIMIT 5