[SR-Users] cdr_json_pre_encoded_prefix

I try to use cdr_json_pre_encoded_prefix (string) parameters from acc_json module modparam("acc_json", "cdr_extra", "spx_resp=$avp(spx_resp)") modparam("acc_json", "cdr_json_pre_encoded_prefix", "spx_resp") do restart and get next mistakes: sep 22 14:17:15 vms-vms-spx-1 kamailio[581922]: ERROR: <core> [core/modparam.c:169]: set_mod_param_regex(): parameter <cdr_json_pre_encoded_prefix> of type <1:string> not found in module <acc_json> сен 22 14:17:15 vms-vms-spx-1 kamailio[581922]: CRITICAL: <core> [core/cfg.y:3686]: yyerror_at(): parse error in config file /etc/kamailio_vmsspx/modules.cfg, line 125, column 63: Can't set module parameter sep 22 14:17:15 vms-vms-spx-1 kamailio[581922]: ERROR: bad config file (1 errors) (parsing code: 0) sep 22 14:17:15 vms-vms-spx-1 systemd[1]: kamailio_vmsspx.service: Control process exited, code=exited status=255 sep 22 14:17:15 vms-vms-spx-1 systemd[1]: kamailio_vmsspx.service: Failed with result 'exit-code'. What’s wrong? I used: [opodguyko@vms-vms-spx-1 ~]$ kamailio -version version: kamailio 5.5.3 (x86_64/linux) b02728-dirty 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, TLS_PTHREAD_MUTEX_SHARED 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: b02728 -dirty compiled on 15:35:46 Dec 15 2021 with gcc 8.3.1 [opodguyko@vms-vms-spx-1 ~]$ This parameter was added at release 5.5.0 Oleg Podguyko