composer network start Error !!!

[FANTA19]

Hi
I am looking for a solution and hope you can help me
I am trying to start the network and unfortunately, I get this error

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fanta@blockchanger:~/BlockchainNetwork-CompositeJourney/dist$ composer network start --networkName my-network --networkVersion 0.0.1 --networkAdmin admin --networkAdminEnrollSecret adminpw --card PeerAdmin@hlfv1 --file networkadmin.card
Starting business network my-network at version 0.0.1

Processing these Network Admins:
userName: admin

✖ Starting business network definition. This may take a minute...
Error: Error trying to start business network. Error: Failed to connect to any peer event hubs. It is required that at least 1 event hub has been connected to receive the commit event
Command failed

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I did not faced any problems in the previous steps except for this step
I'm using ubuntu 20.04