I have problem to use Docker in Siemonster

i use docker in siemonster
becuse i live in iran i must use TOR and other proxy to bypass Boycott iran.

root@siemonster-v2-vm:~# ./rancherserver-start.sh
sudo: unable to resolve host siemonster-v2-vm
docker: Error response from daemon: driver failed programming external connectivity on endpoint wonderful_boyd (809a01e9f9cbffcd562407bef6c7644ab0af7fffc400e89a70796151158f202a): Bind for failed: port is already allocated.

i will this run but i get error