[SqlException (0x80131904): Violation of PRIMARY KEY constraint 'PK_System_Widgets_SectionGroupsSections'. Cannot insert duplicate key in object 'dbo.System_Widgets_SectionGroupsSections'.
The statement has been terminated.]
   System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection) +1951450
   System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) +4849003
   System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) +194
   System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj) +2394
   System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString) +204
   System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async) +954
   System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, DbAsyncResult result) +162
   System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(DbAsyncResult result, String methodName, Boolean sendToPipe) +175
   System.Data.SqlClient.SqlCommand.ExecuteNonQuery() +137
   NHibernate.Impl.BatcherImpl.ExecuteNonQuery(IDbCommand cmd) +32
   NHibernate.Impl.NonBatchingBatcher.AddToBatch(IExpectation expectation) +16
   NHibernate.Persister.Collection.AbstractCollectionPersister.InsertRows(IPersistentCollection collection, Object id, ISessionImplementor session) +723

[ADOException: could not insert collection rows: [AdminCms.BusinessObjects.Widgets.WidgetSectionGroup.RelatedSections#34]]
   NHibernate.Persister.Collection.AbstractCollectionPersister.InsertRows(IPersistentCollection collection, Object id, ISessionImplementor session) +1024
   NHibernate.Impl.ScheduledCollectionUpdate.Execute() +247
   NHibernate.Impl.SessionImpl.Execute(IExecutable executable) +108
   NHibernate.Impl.SessionImpl.ExecuteAll(IList list) +83
   NHibernate.Impl.SessionImpl.Execute() +199
   NHibernate.Impl.SessionImpl.Flush() +45
   AdminCms.DataAccessObjects.Base.BaseDAO`2.Save(T entity) in D:\Sources\Gecko\AdminCms.DataAccessObjects\Base\BaseDAO.cs:52
   AdminCms.BusinessServices.MostViewed.MostViewed.RecordHitArticleEmailed(HitArticleEmailed hit) in D:\Sources\Gecko\AdminCms.BusinessServices\MostViewed\MostViewed.cs:44
   NewsMerged.UserControls.EmailFriend.RecordArticleEmailed(Int32 arId) in D:\Sources\Gecko\NewsWeb\UserControls\EmailFriend.ascx.cs:201
   NewsMerged.UserControls.EmailFriend.btnMailIt_Click(Object sender, EventArgs e) in D:\Sources\Gecko\NewsWeb\UserControls\EmailFriend.ascx.cs:194
   System.Web.UI.WebControls.Button.OnClick(EventArgs e) +111
   System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) +110
   System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +10
   System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +13
   System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +36
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1565