Whenever i try to start the vnc it give me this

$ ./start-manjaro.sh
[root@localhost ~]# vncserver-start
Could not start Xvnc.

_XSERVTransSocketUNIXCreateListener: ...SocketCreateListener() failed
_XSERVTransMakeAllCOTSServerListeners: server already running
(EE)
Fatal server error:
(EE) Cannot establish any listening sockets - Make sure an X server isn't already running(EE)

[root@localhost ~]#

What should i do