10 10 10 Community

I got this error while executing the its_demo

STEP 4 – SETUP PHASE
^CiCS –> #Error while receiving response from Application: tcpip::Socket::receive() @ recv: Connection reset by peer
iCS –> Error occurred when asking for new subscriptions (node 5000)
iCS –> [ERROR] RunApplicationLogic() in NewSubscriptions.
iCS –> ERROR running application logic in setup phase

iCS –> #Error while receiving command: tcpip::Socket::receive() @ recv: Connection reset by peer
iCS –> [ERROR] CloseSumo() Closing SUMO
iCS –> Error occurred during iCS set-up
Quitting (on error).
I don’t know the source of the problem (I am a beginner ) )