[Serusers] parse_hfs(): Error while parsing headers

i 'm connecting to SER, which running on 192.168.1.70 'sip.server.net', using Windows Messenger i add user2 to my contact list i have this errors in response to a SUBSCRIBE request parse_hfs(): Error while parsing headers handle_subscription(): Error while parsing message header can somebody help me Regards //////////////////////////////////////////////////////////////////////////////// 0(2945) SIP Request: 0(2945) method: <REGISTER> 0(2945) uri: <sip:sip.server.net> 0(2945) version: <SIP/2.0> 0(2945) parse_headers: flags=2 0(2945) end of header reached, state=5 0(2945) parse_headers: Via found, flags=2 0(2945) parse_headers: this is the first via 0(2945) After parse_msg... 0(2945) preparing to run routing scripts... 0(2945) parse_headers: flags=100 0(2945) DEBUG:maxfwd:is_maxfwd_present: value = 70 0(2945) DBG:maxfwd:process_maxfwd_header: value 70 decreased to 16 0(2945) parse_headers: flags=200 0(2945) end of header reached, state=9 0(2945) DEBUG: get_hdr_field: <To> [34]; uri=[sip:user1@sip.server.net] 0(2945) DEBUG: to body [<sip:user1@sip.server.net>^M ] 0(2945) get_hdr_field: cseq <CSeq>: <1> <REGISTER> 0(2945) DEBUG: get_hdr_body : content_length=0 0(2945) found end of header 0(2945) find_first_route: No Route headers found 0(2945) loose_route: There is no Route HF 0(2945) grep_sock_info - checking if host==us: 18==18 && [sip.server.net] == [sip.server.net] 0(2945) grep_sock_info - checking if port 5060 matches port 5060 0(2945) parse_headers: flags=ffffffffffffffff 0(2945) parse_headers: flags=4000000 0(2945) build_contact(): Created Contact HF: Contact: <sip:192.168.1.118:14310>;expires=3600^M 0(2945) parse_headers: flags=ffffffffffffffff 0(2945) check_via_address(192.168.1.118, 192.168.1.118, 0) 0(2945) DEBUG:destroy_avp_list: destroying list (nil) 0(2945) receive_msg: cleaning up 0(2945) SIP Request: 0(2945) method: <SUBSCRIBE> 0(2945) uri: <sip:user2@sip.server.net> 0(2945) version: <SIP/2.0> 0(2945) parse_headers: flags=2 0(2945) end of header reached, state=5 0(2945) parse_headers: Via found, flags=2 0(2945) parse_headers: this is the first via 0(2945) After parse_msg... 0(2945) preparing to run routing scripts... 0(2945) parse_headers: flags=100 0(2945) DEBUG:maxfwd:is_maxfwd_present: value = 70 0(2945) DBG:maxfwd:process_maxfwd_header: value 70 decreased to 16 0(2945) parse_headers: flags=10 0(2945) DEBUG: add_param: tag=963f17727b404c5ca92bd1ad97491e13 0(2945) DEBUG: add_param: epid=db4638b430 0(2945) end of header reached, state=29 0(2945) parse_headers: flags=200 0(2945) end of header reached, state=9 0(2945) DEBUG: get_hdr_field: <To> [33]; uri=[sip:user2@sip.server.net] 0(2945) DEBUG: to body [<sip:user2@sip.server.net>^M ] 0(2945) get_hdr_field: cseq <CSeq>: <1> <SUBSCRIBE> 0(2945) DEBUG: get_hdr_body : content_length=0 0(2945) found end of header 0(2945) find_first_route: No Route headers found 0(2945) loose_route: There is no Route HF 0(2945) grep_sock_info - checking if host==us: 18==18 && [sip.server.net] == [sip.server.net] 0(2945) grep_sock_info - checking if port 5060 matches port 5060 0(2945) DEBUG: t_newtran: msg id=2 , global msg id=0 , T on entrance=0xffffffff 0(2945) parse_headers: flags=ffffffffffffffff 0(2945) parse_headers: flags=78 0(2945) t_lookup_request: start searching: hash=53801, isACK=0 0(2945) DEBUG: proceeding to pre-RFC3261 transaction matching 0(2945) DEBUG: t_lookup_request: no transaction found 0(2945) handle_subscription() entered 0(2945) parse_headers: flags=304010 0(2945) parse_hfs(): Error while parsing headers 0(2945) handle_subscription(): Error while parsing message header 0(2945) handle_subscription about to send_reply and return -2 0(2945) DEBUG: t_check: msg id=2 global id=2 T start=0x422efda0 0(2945) DEBUG: t_check: T already found! 0(2945) parse_headers: flags=ffffffffffffffff 0(2945) check_via_address(192.168.1.118, 192.168.1.118, 0) 0(2945) DEBUG: cleanup_uac_timers: RETR/FR timers reset 0(2945) DEBUG: add_to_tail_of_timer[2]: 0x422efde8 0(2945) DEBUG: reply sent out. buf=0x8138d64: SIP/2.0 4..., shmem=0x422f13d8: SIP/2.0 4 0(2945) DEBUG: _reply_light: finished 0(2945) DEBUG:destroy_avp_list: destroying list (nil) 0(2945) receive_msg: cleaning up 0(2945) SIP Request: