How to remove "orbeon forms call stack" from error page

>
> Hi All,
>
> Please find attached xformsstacktrace.jpg.
> When exception rises, xforms redirects one error page as shown as
> attachment. How to remove orbeon forms call stack(print trace) from the
> error page. I want to show only error message.
>
> In order to achieve this functionality which classes or scripts need to
> modify in existing code.
>
> any help would be appreciated.
>
> Regards,
> Laxmi.
>
>
>
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