the object specified does not belong to a list

Question

I am having a problem to visualize the http://servername/SearchCenter/, it is showing the message:

Microsoft.SharePoint.SPException: the object specified does not belong to a list

and is showing the stack trace:

    [SPException: the object specified does not belong to a list.]
       Microsoft.SharePoint.SPWeb.GetItem(String strUrl, Boolean bFile, Boolean cacheRowsetAndId) +578
.
.
.

And is throwing this exception only when I am logged in. I already got the project done, somebody just told me it could be a masterpage problem.

Whenever I open the subsite in the sharepoint designer SearchCenter the page SearchCenter/Pages/Default.aspx it redirects to the root solution and open the _catalogs/Pages/searchmain.aspx

The code in the searchmain.aspx have the header.

<%@ Page language="C#" Inherits="Microsoft.SharePoint.Publishing.PublishingLayoutPage,Microsoft.SharePoint.Publishing,Version=12.0.0.0,Culture=neutral"
 meta:progid="SharePoint.WebPartPage.Document" %>

<%@ Register Tagprefix="SharePoint" Namespace="Microsoft.SharePoint.WebControls" Assembly="Microsoft.SharePoint, Version=12.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %> 
<%@ Register Tagprefix="WebPartPages" Namespace="Microsoft.SharePoint.WebPartPages" Assembly="Microsoft.SharePoint, Version=12.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %> 
<%@ Register Tagprefix="OSRVWC" Namespace="Microsoft.Office.Server.WebControls" Assembly="Microsoft.Office.Server, Version=12.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %>
<%@ Register Tagprefix="SPSWC" Namespace="Microsoft.SharePoint.Portal.WebControls" Assembly="Microsoft.SharePoint.Portal, Version=12.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %> 
<%@ Register Tagprefix="SEARCHWC" Namespace="Microsoft.Office.Server.Search.WebControls" Assembly="Microsoft.Office.Server.Search, Version=12.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %> 
<%@ Register Tagprefix="PublishingWebControls" Namespace="Microsoft.SharePoint.Publishing.WebControls" Assembly="Microsoft.SharePoint.Publishing, Version=12.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %>

The same error occurs when I create a subsite, when you click create, it outputs:

The object specified does not belong to a list.   at Microsoft.SharePoint.SPWeb.GetItem(String strUrl, Boolean bFile, Boolean cacheRowsetAndId) 
   at Microsoft.SharePoint.SPFile.get_Item() 
   at Microsoft.SharePoint.Publishing.PublishingWeb.GetPageLayoutCollectionFromStringMustCloseFileWeb(String pageLayoutUrls, Char[] delimiters, SPSite site) 
   at Microsoft.SharePoint.Publishing.Internal.AreaProvisioner.InitializePublishingWebDefaults()

It also appears on the first page.

 ! The specific object doesn't belong to a list.