we trying to configurate the pcscf.cfg file and we the following error

Do you have an idea of the reason of this error?,

78(12285)ERROR: *** cfgtrace:dbg_cfg_trace(): request_route=[NATPING] c=[/etc/kamailio_pcscf/kamailio_pcscf.cfg] l=836 a=5 n=route 78(12285) ERROR: *** cfgtrace:dbg_cfg_trace(): request_route=[preload_pcscf] c=[/etc/kamailio_pcscf/kamailio_pcscf.cfg] l=895 a=16 n=if 78(12285) ERROR: *** cfgtrace:dbg_cfg_trace(): request_route=[preload_pcscf] c=[/etc/kamailio_pcscf/kamailio_pcscf.cfg] l=894 a=2 n=return 78(12285) ERROR: *** cfgtrace:dbg_cfg_trace(): request_route=[NATPING] c=[/etc/kamailio_pcscf/kamailio_pcscf.cfg] l=838 a=26 n=sht_iterator_start 78(12285) ERROR: *** cfgtrace:dbg_cfg_trace(): request_route=[NATPING] c=[/etc/kamailio_pcscf/kamailio_pcscf.cfg] l=848 a=23 n=while 78(12285) ERROR: *** cfgtrace:dbg_cfg_trace(): request_route=[NATPING] c=[/etc/kamailio_pcscf/kamailio_pcscf.cfg] l=839 a=25 n=sht_iterator_next 78(12285) ERROR: *** cfgtrace:dbg_cfg_trace(): request_route=[NATPING] c=[/etc/kamailio_pcscf/kamailio_pcscf.cfg] l=849 a=25 n=sht_iterator_end