В приложении возникла ошибка



URL:http://prozarium.ru/TextDetails.aspx?TextID=1196;
Exception: Item has already been added. Key in dictionary: 'AuthoriseToComment' Key being added: 'AuthoriseToComment';
Stack Trace: at System.Collections.Hashtable.Insert(Object key, Object nvalue, Boolean add) at System.Collections.Hashtable.Add(Object key, Object value) at System.Collections.Specialized.NameObjectCollectionBase.BaseAdd(String name, Object value) at System.Collections.Specialized.NameObjectCollectionBase.BaseSet(String name, Object value) at System.Web.SessionState.SessionStateItemCollection.set_Item(String name, Object value) at System.Web.SessionState.HttpSessionStateContainer.set_Item(String name, Object value) at YourPoint.SessionManager.get_AuthoriseToComment() at YourPoint.Controls_Comments.OnInit(EventArgs e) in c:\inetpub\vhosts\u0545844.plsk.regruhosting.ru\prozarium.ru\Controls\Comments.ascx.cs:line 40 at System.Web.UI.Control.InitRecursive(Control namingContainer) at System.Web.UI.Control.InitRecursive(Control namingContainer) at System.Web.UI.Control.InitRecursive(Control namingContainer) at System.Web.UI.Control.InitRecursive(Control namingContainer) at System.Web.UI.Control.InitRecursive(Control namingContainer) at System.Web.UI.Control.InitRecursive(Control namingContainer) at System.Web.UI.Control.InitRecursive(Control namingContainer) at System.Web.UI.Control.InitRecursive(Control namingContainer) at System.Web.UI.Control.InitRecursive(Control namingContainer) at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint);