The command specified in the ExecStart entry is invoked when we start the server using systemctl start it uses runuser to run TigerVNC under the user’s account. These begin with a kill command, so type 'vncserver -kill :1' (again without the quotes). To install vino VNC server on Fedora, CentOS or RHEL desktop: $ sudo yum install vino Configure and Start vino VNC Server.And to start it again, just run: vncserver. I am at a loss as to what to do about this.
Read the following steps and it should be ok. Vncserver start command Starting a VNC server.
