I have a problem. May be some body help me.
When I want to create potal site server send me a msg: Portal
creation failed. Please see the portal creation log for more details.
On log last:

10:55:04 Exit DeletePortalSite()
10:55:04 Enter UnextendVirtualServer
10:55:04 Unextending virtual server 'http://sps.xms.sumy.ua/'.
(0e364ddd-59c3-4840-a85d-e8cca0e61031)
10:55:05 Exit UnextendVirtualServer
10:55:05 Exit PortalInstaller.Rollback
10:55:05 Portal creation job exception.
(status=PortalAdminJobStatusFailed) System.NullReferenceException:
Object reference not set to an instance of an object. at
Microsoft.SharePoint.Portal.Install.i.a(PortalContext A_0, SPSite
A_1, PortalXmlTemplate A_2, String A_3, Boolean A_4) at
Microsoft.SharePoint.Portal.Install.i.a(PortalContext A_0, SPSite
A_1, String A_2, String A_3, Boolean A_4) at
Microsoft.SharePoint.Portal.Install.i.a(IDictionary A_0) at
System.Configuration.Install.Installer.Install(IDictionary
stateSaver) at
System.Configuration.Install.TransactedInstaller.Install(IDictionary
savedState)
10:55:05 Failed to create portal successfully Abss
10:55:05 Portal creation complete. (Status:
PortalAdminJobStatusFailed)

Plz help me If you know what the problem & how I can fix this.