I have done everything from how videos, guides, among other things and STILL have not fixed the issue, I have the permission denied thing with the io netty issue and so on. I have reinstalled hamachi, deleted all files, and nothing works. The server is on 1.12.2 and I can run the server, join it myself, but no one else can. I have my IP4 adress in the server file where it's supposed to be. Also, yes I went into letting things through the firewall, and disabled my firewalls.