Server Error in '/' Application.

Cannot find column [oldhtmlurl].

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.Data.EvaluateException: Cannot find column [oldhtmlurl].

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:


[EvaluateException: Cannot find column [oldhtmlurl].]
   System.Data.NameNode.Bind(DataTable table, List`1 list) +263
   System.Data.BinaryNode.Bind(DataTable table, List`1 list) +48
   System.Data.DataExpression.Bind(DataTable table) +116
   System.Data.DataView.set_RowFilter(String value) +194
   getpapers.Page_Load(Object sender, EventArgs e) +6788
   System.Web.UI.Control.OnLoad(EventArgs e) +106
   System.Web.UI.Control.LoadRecursive() +68
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +3785


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.7.4087.0