Guys I'm getting the below error...Can anybody help please?

Oct 22 12:27:17 localhost /usr/local/sbin/kamailio[28566]: ERROR: <script>: time_dbg:method=INVITE;time=1287750437;callid=Y2FjNDAyZDY4YTk5ZWQ1Yjc4MDk4ZGZiZjk5YjIyYmE. - in NAT out route


Regards