Hi there,
You need to design your error.php page and included those necessary things in it. Unfortunately we cannot accommodate your request currently as it is beyond our support scope's policy as outlined in
http://stackideas.com/support and it is considered as customizations.
Having said that, if you require us to perform the customization for you, you can always request for a quote from us at
https://crm.stackideas.com and select "Customizations" . Our sales person would be glad to send you a quote for the customizations that you have requested.
Thanks for your understanding.