[SR-Users] reg_fetch_contacts always returns -1

Hello! I want to get some parameters from user location database via function reg_fetch_contacts(). But it returns -1 and $(ulc(caller=>aor)) is <null> respectively. Please help me to understand where issue is. Script: ... $var(c_uri)="sip:+1234567890@10.10.10.10:5065"; reg_fetch_contacts("location","$var(c_uri)","caller"); $var(rc) = $rc; xlog("L_WARNING","[LOCATION] caller=>aor: rc=$var(rc) aor=$(ulc(caller=>aor)) \n"); ... [root@kamailio]# kamcmd ul.lookup location customer1 { AoR: customer1 Contacts: { Contact: { Address: sip:+1234567890@10.10.10.10:5065 Expires: 861 Q: -1.000000 Call-ID: 00DB5F27-0B02-E966-92C3-A231C378F993(a)10.10.10.10 CSeq: 1787 User-Agent: SIPPER for PhonerLite Received: sip:2.2.2.2:15043 Path: [not set] State: CS_SYNC Flags: 0 CFlags: 64 Socket: udp:3.3.3.3:5060 Methods: 8095 Ruid: uloc-1-5c1a3512-66a6-1 Instance: <urn:uuid:00FB3C49-24E8-E811-ACAA-D72FCD766436> Reg-Id: 0 Server-Id: 1 Tcpconn-Id: -1 Keepalive: 1 Last-Keepalive: 1545232794 Last-Modified: 1545232794 } } } [root@kamailio]# kamailio -v version: kamailio 5.1.6 (x86_64/linux) flags: STATS: Off, USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, USE_RAW_SOCKS, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MEM, SHM_MMAP, PKG_MALLOC, Q_MALLOC, F_MALLOC, TLSF_MALLOC, DBG_SR_MEMORY, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLACKLIST, HAVE_RESOLV_RES ADAPTIVE_WAIT_LOOPS=1024, MAX_RECV_BUFFER_SIZE 262144 MAX_URI_SIZE 1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB poll method support: poll, epoll_lt, epoll_et, sigio_rt, select. id: unknown compiled on 13:53:57 Nov 12 2018 with gcc 4.8.5 -- BR, Denys Pozniak