The heimdalld cannot connect peers

I setting up the matic full node with the guide GitHub - maticnetwork/heimdall: Validator node for Matic PoS layer and GitHub - maticnetwork/bor: Official repository for the Matic Blockchain but when run heimdalld, I got this error, it can not sync, can anyone help me?

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I think @dev is scammer, can anyone check this account?