Server Error in '/' Application.

Not enough permissions.
Inherit your page class from RadAjaxPage if you are running under Medium trust level.

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.InvalidOperationException: Not enough permissions.
Inherit your page class from RadAjaxPage if you are running under Medium trust level.

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:


[InvalidOperationException: Not enough permissions.
Inherit your page class from RadAjaxPage if you are running under Medium trust level.]
   Telerik.Web.UI.RadAjaxControl.AttachOnRender() +284
   Telerik.Web.UI.RadAjaxControl.OnPagePreRenderComplete(Object sender, EventArgs e) +138
   System.EventHandler.Invoke(Object sender, EventArgs e) +0
   System.Web.UI.Page.OnPreRenderComplete(EventArgs e) +9866454
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1098


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.8.4700.0