[www.toosport.com mysql5-15 via TCP/IP : erreur SQL] - Unknown column 'tu_date_end' in 'where clause'

Query : SELECT t1.id_user, username, sex, picture, url
FROM users t1 WHERE id_user IN (SELECT id_user1
FROM users_users
WHERE id_user2 = '1256')
OR id_user IN (SELECT id_user2
FROM users_users
WHERE id_user1 = '1256') AND tu_date_end = "0000-00-00" AND status = "member" ORDER BY id_user DESC LIMIT 0, 6

Fichier : /homez.504/veryvery/www/core/class/class.objects_group.php
Ligne : 38
Warning: mysqli_fetch_row() expects parameter 1 to be mysqli_result, boolean given in /homez.504/veryvery/www/core/class/class.db.php on line 187