Big Red 'X' Exception in C# winform application.

Question

Dear All,

 

I am posting this to get a help from your side to solve a issue in my c# winform application.

 

A big red 'X' lines draws in my application in client computer. It is not a often phenomina, occuring once in week. below is the screenshot: 

 

I have a panel (RadPanel) covering all these controls during the main page load event. Then the panel will send to back when user click on menu item.

 

I have not wrote any event to panle control.