Any help solving this error message from kamailio server 4.0

Oct  1 00:31:07 kmlsvr /usr/local/sbin/kamailio[27166]: ERROR: nathelper [nhelpr_funcs.c:195]: message body has length zero
Oct  1 00:31:07 kmlsvr /usr/local/sbin/kamailio[27166]: ERROR: nathelper [nathelper.c:1640]: cannot extract body from msg!
Oct  1 03:09:14 kmlsvr /usr/local/sbin/kamailio[27169]: ERROR: nathelper [nhelpr_funcs.c:195]: message body has length zero
Oct  1 03:09:14 kmlsvr /usr/local/sbin/kamailio[27169]: ERROR: nathelper [nathelper.c:1640]: cannot extract body from msg!
Oct  1 03:09:23 kmlsvr /usr/local/sbin/kamailio[27167]: ERROR: nathelper [nhelpr_funcs.c:195]: message body has length zero
Oct  1 03:09:23 kmlsvr /usr/local/sbin/kamailio[27167]: ERROR: nathelper [nathelper.c:1640]: cannot extract body from msg!
Oct  1 03:09:26 kmlsvr /usr/local/sbin/kamailio[27168]: ERROR: nathelper [nhelpr_funcs.c:195]: message body has length zero
Oct  1 03:09:26 kmlsvr /usr/local/sbin/kamailio[27168]: ERROR: nathelper [nathelper.c:1640]: cannot extract body from msg!
Oct  1 04:24:24 kmlsvr /usr/local/sbin/kamailio[27166]: ERROR: nathelper [nhelpr_funcs.c:195]: message body has length zero
Oct  1 04:24:24 kmlsvr /usr/local/sbin/kamailio[27166]: ERROR: nathelper [nathelper.c:1640]: cannot extract body from msg!
Oct  1 06:28:11 kmlsvr /usr/local/sbin/kamailio[27168]: ERROR: nathelper [nhelpr_funcs.c:195]: message body has length zero
Oct  1 06:28:11 kmlsvr /usr/local/sbin/kamailio[27168]: ERROR: nathelper [nathelper.c:1640]: cannot extract body from msg!
Oct  1 06:37:08 kmlsvr /usr/local/sbin/kamailio[27166]: ERROR: nathelper [nhelpr_funcs.c:195]: message body has length zero
Oct  1 06:37:08 kmlsvr /usr/local/sbin/kamailio[27166]: ERROR: nathelper [nathelper.c:1640]: cannot extract body from msg!
Oct  1 08:22:55 kmlsvr /usr/local/sbin/kamailio[27169]: ERROR: nathelper [nhelpr_funcs.c:195]: message body has length zero
Oct  1 08:22:55 kmlsvr /usr/local/sbin/kamailio[27169]: ERROR: nathelper [nathelper.c:1640]: cannot extract body from msg!

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Kethzer Docteur