I just installed kamailio on Debian 7 and when I start it with init.d I get the following messages.

root@voip:/etc/kamailio# /etc/init.d/kamailio start
Starting Kamailio:
loading modules under /usr/lib64/kamailio/modules_k/:/usr/lib64/kamailio/modules/
Listening on 
             udp: 127.0.0.1:5060
             udp: MYSERVERIP:5060
             tcp: 127.0.0.1:5060
             tcp: MYSERVERIP:5060
             tls: 127.0.0.1:5061
             tls: MYSERVERIP:5061
Aliases: 
             tls: voip:5061
             tls: localhost:5061
             tcp: voip:5060
             tcp: localhost:5060
             udp: voip:5060
             udp: localhost:5060

kamailio error, failed to start.
root@voip:/etc/kamailio# 


How can I find out what the problem is?