[Serusers] Starting SER : PID file /var/run/ser.pid does not exist -- SER start failed

hello friends please help me to get out from this error , when i run ser start command it show the follow listening on udp: 127.0.0.1 [127.0.0.1]:5060 udp: 192.168.0.76 [192.168.0.76]:5060 tcp: 127.0.0.1 [127.0.0.1]:5060 tcp: 192.168.0.76 [192.168.0.76]:5060 Aliases: tcp: localhost:5060 tcp: localhost.localdomain:5060 udp: localhost:5060 udp: localhost.localdomain:5060 but when i start giving this command serctl start i got this following error ********Starting SER : PID file /var/run/ser.pid does not exist -- SER start failed********* i had checked for errors by starting ser -c but nothing i can do and iam using ser-0.9.6 on fedora 4 i even connected to mysql database and i can see the ser tables i think every thing is going fine but what is this error since 6 days iam working round this but cant find the answer and my ser.cfg it shows no errors , i dont understand from which and what way i have to go to debug this error please help me thanks in advance ravi.