My friends can't join my IP server. I've got it all set up, I gave them the right IP, but when they try to join, it simply says 'can't connect to server'. I've also gotten this error:
[01:25:05] [Server thread/WARN]: Can't keep up! Is the server overloaded? Running 3281ms or 65 ticks behind
But I'm not sure if that's related to them joining. I'm on macOS, and when I use the IP to join my own server, it works just fine. Could someone help me out?