Hello I run bitcoind and i get this 8333 failed after select(): Connection refused (111). Can you help me with this? because it was working suddenly this happened.
this happens when you have a running daemon and suddenly for whatever reason the firewall starts blocking it. IT IS A FIREWALL ISSUE.
In my case I installed additional programs on my server which changed the settings of nftables (formerly iptables). I had to open up the relevant ports again (that are required by btc-daemon).
After that you have to restart both nftables as well as btcd.
Keep checking the logs for a few minutes. And you will see it will be running just fine.