How to run bitcoin atom daemon? I set up the bitcoin atom daemon on an Ubuntu server and I want to run it.

How can I do that?
You may miss rpcport number in configuration file.

Run nano ~/.bitcoinatom/atom.conf

Add new line rpcport=7332 for mainet or rpcport=17332 for testnet

Kill the process and restart server

Ref: https://github.com/bitcoin-atom/bitcoin-atom/wiki/Mining-Instructions