drupal 6.26

Ciao ragazzi, sto cercando di installare una versione precedente di drupal ma l'installazione non parte..mi da questo errore:

user warning: 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 ') ORDER BY fit DESC LIMIT 0, 1' at line 1 query: SELECT * FROM menu_router WHERE path IN () ORDER BY fit DESC LIMIT 0, 1 in /membri/giotornado82/includes/menu.inc on line 317.
user warning: 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 ') ORDER BY fit DESC LIMIT 0, 1' at line 1 query: SELECT * FROM menu_router WHERE path IN () ORDER BY fit DESC LIMIT 0, 1 in /membri/giotornado82/includes/menu.inc on line 317.

Qualche idea?
Grazie

Non installare una versione precedente..metti la 7.xx