When I try to do a check-out for an item on ILL process , Koha tries to go to /cgi-bin/koha/ill/ill-requests.pl?method=check_out&illrequest_id=XX but if the library has at least a patron on statistical category without cardnumber, then I get "The timeout specified has expired" and "AH00898: Error reading from remote server returned by /cgi-bin/koha/ill/ill-requests.pl" and if you use plack you get finally Proxy error, without any other explanation or something on logs. At line 1116 at Illrequest.pm where gather all statistical patrons, it should search only for those with cardnumber otherwise will faill on the other side of tt .