www.hkvforums.com

If a users session expires or is logged out instead of the using the following
// Permission denied message
function ew_DeniedMsg() {
global $Language;
return str_replace("%s", ew_CurrentUrl(), $Language->Phrase("NoPermission"));
}

tell the user there session has expired please relogin.

This should help: http://www.hkvforums.com/viewtopic.php? ... 40#p115040