Hi Chris,

no, no solution yet. I did install some module on that portal, but don't think that's involved: like Sebastian says, the error appears to be with the "IsSuperUser" function:

AssemblyVersion: 04.09.03
PortalID: 0
PortalName: #####
UserID: 3
UserName: AVelo
ActiveTabID: 42
ActiveTabName: Account Utenti
RawURL: /Admin/UserAccounts/tabid/42/filter/Online/currentpage/1/Default.aspx
AbsoluteURL: /Default.aspx
AbsoluteURLReferrer: http://www. #####.it/Admin/UserAccounts/tabid/42/Default.aspx
UserAgent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 1.1.4322; .NET CLR 2.0.50727; InfoPath.2; .NET CLR 3.0.04506.30; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)
DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider
ExceptionGUID: 5172e458-f9dc-4c9b-bd52-3e6e93ceb368
InnerException: IsSuperUser
FileName:
FileLineNumber: 0
FileColumnNumber: 0
Method: System.Data.ProviderBase.FieldNameLookup.GetOrdinal
StackTrace:
Message: System.IndexOutOfRangeException: IsSuperUser at System.Data.ProviderBase.FieldNameLookup.GetOrdinal(String fieldName) at System.Data.SqlClient.SqlDataReader.GetOrdinal(String name) at System.Data.SqlClient.SqlDataReader.get_Item(String name) at DotNetNuke.Security.Membership.AspNetMembershipProvider.FillUserInfo(Int32 portalId, IDataReader dr, Boolean isHydrated, Boolean CheckForOpenDataReader) at DotNetNuke.Security.Membership.AspNetMembershipProvider.FillUserCollection(Int32 portalId, IDataReader dr, Boolean ishydrated, Int32& totalRecords)