مشكلة فيDatabase + الخطأ 1064

database error in vbulletin 4.0.7:

Invalid sql:
Delete from cms_layoutwidget where widgetid in (
select widgetid from cms_widget where widgettypeid = );

mysql error : 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 2
error number : 1064
request date : Wednesday, march 2nd 2011 @ 02:33:12 pm
error date : Wednesday, march 2nd 2011 @ 02:33:12 pm
script : http://www.*********.com/upload/install/finalupgrade.php?step=6
referrer : http://www.*********.com/upload/install/finalupgrade.php?step=5
ip address :
Username :
Classname : Vb_database
mysql version : 5.0.91-community

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