Error direct on thread with the popup manager

[Alexandre]

Hi everyone , I have an application using telerik controls curently running in my business. Sometimes I got this message directly on the thread and I would like to know if there is an issue.
Thanks
I let follow the stack trace. ExceptionType : NullReferenceException

at Telerik.WinControls.UI.PopupManager.OnKeyDown(Int32 param)
   at Telerik.WinControls.UI.PopupManager.Telerik.WinControls.IMessageListener.PreviewMessage(Message& msg)
   at Telerik.WinControls.RadMessageFilter.NotifyGetMessageEvent(Message& msg)
   at Telerik.WinControls.RadMessageFilter.GetMessageHookProc(Int32 code, IntPtr wParam, IntPtr lParam)
   at System.Windows.Forms.UnsafeNativeMethods.GetMessageW(MSG& msg, HandleRef hWnd, Int32 uMsgFilterMin, Int32 uMsgFilterMax)
   at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(Int32 dwComponentID, Int32 reason, Int32 pvLoopData)
   at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
   at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
   at System.Windows.Forms.Application.Run(ApplicationContext context)
   at Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.OnRun()
   at Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.DoApplicationModel()
   at Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.Run(String[] commandLine)

[Alexandre]

This is the Q9 sp1 version

[Boryana]

Hello Alexandre,

Thank you for contacting us.

In order to locate what causes the exception, our team will need to debug your application. For this reason we kindly ask you to send us a sample project that demonstrates the issue. Another option is to provide us with a list of steps that reproduces the exception. Please note that you will need to open a new Support Ticket in order to attach files.

I am looking forward to your reply.

A bit out of scope, please check the status of your license. To do this, please contact [e-mail] or check your account (www.telerik.com/account.aspx). Your license ensures that you will get proper support services from Telerik in the future. Thank you in advance.
 

Sincerely yours,
Boryana
the Telerik team