Hello,
I'm having difficulty running the kamctl command, can someone help me?

[root@kamailio ~]# kamctl domain reload
which: no gdb in (/sbin:/bin:/usr/sbin:/usr/bin:/)
ERROR: Error opening Kamailio's FIFO /run/kamailio/kamailio_rpc.fifo
ERROR: Make sure you have loaded the jsonrpcs module and set FIFO transport parameters
[root@kamailio ~]# kamailio --version

version: kamailio 5.5.2 (x86_64/linux) 55e232
flags: USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, USE_RAW_SOCKS, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, 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_BLOCKLIST, 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: 55e232
compiled on 14:20:31 Aug 25 2021 with gcc 4.8.5
[root@kamailio ~]# 

Tranks.