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Server Error in '/' Application.Object reference not set to an instance of an object.Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.Source Error:Line 16: Line 17: Line 18: Line 19: Line 20: Source File: F:\Forum.Web.Deploy\Controls\Discussion\WideReplica.ascx Line: 18Stack Trace:[NullReferenceException: Object reference not set to an instance of an object.] Forum.MessengerStatusCache.IsUserOnline(Int32 userId, Boolean& isAgentUser) in C:\Inetpub\wwwroot\Forum.Web\MessengerStatusCache.cs:220 Forum.Controls.Discussion.WideReplica.BindReplica(Object Text, Object Signature, Object Blocked) in C:\Inetpub\wwwroot\Forum.Web\Controls\Discussion\WideReplica.ascx.cs:115 ASP.WideReplica_ascx.__DataBind__control4(Object sender, EventArgs e) in F:\Forum.Web.Deploy\Controls\Discussion\WideReplica.ascx:18 System.Web.UI.Control.OnDataBinding(EventArgs e) +66 System.Web.UI.Control.DataBind() +26 System.Web.UI.Control.DataBind() +86 System.Web.UI.Control.DataBind() +86 System.Web.UI.WebControls.Repeater.CreateItem(Int32 itemIndex, ListItemType itemType, Boolean dataBind, Object dataItem) +127 System.Web.UI.WebControls.Repeater.CreateControlHierarchy(Boolean useDataSource) +477 System.Web.UI.WebControls.Repeater.OnDataBinding(EventArgs e) +48 System.Web.UI.WebControls.Repeater.DataBind() +23 System.Web.UI.Control.DataBind() +86 System.Web.UI.Control.DataBind() +86 System.Web.UI.Control.DataBind() +86 Forum.Core.Generic.OnPreRender(EventArgs e) in C:\Inetpub\wwwroot\Forum.Web\Core\Generic.cs:431 System.Web.UI.Control.PreRenderRecursiveInternal() +62 System.Web.UI.Page.ProcessRequestMain() +1499Version Information: Microsoft .NET Framework Version:1.1.4322.2407; ASP.NET Version:1.1.4322.2407