(unknown)

Hi:
 
I have this error and every time that happends the handsets can't keep on browsing the wap aplications. 
The only solution to get the service again is doing a restart to the kannel service and this is very unconfortable to my users.
 
How can I fix it???
 
The program is wap-appl.c
 
            if ((referer_url = get_referer_url(find_session_machine_by_id(session_id)))) {                content.body = error_requesting_back(url, referer_url);                debug("wap.wsp",0,"WSP: returning smart error WML deck for referer URL");            }            /*             * if there is no referer to retun to, check if we have a             * device-home defined and return to that, otherwise simply             * drop an error wml deck.             */            else if (device_home != NULL) {
>>>>>>>>>>>>>>>>>>>>>>  THIS IS THE LINE <<<<<<<<<<<<<<<<<<<<<                content.body = error_requesting_back(url, device_home);                debug("wap.wsp",0,"WSP: returning smart error WML deck for device-home URL");
            } else {                content.body = error_requesting(url);                debug("wap.wsp",0,"WSP: returning smart error WML deck");            }
Thanks in advance
Regards,
Carlos.
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