It means check if they're ok. Stop and restart them. If it doesn't work, check IPs, firewall and so on to see what is blocking. I'm not in your server, I can't tell what happened, I don't even know what rev you're using.
any idea how to fix it? and how far I can use /go? coz i tried /go 13-22 or so theres nothing happening the last map i tried was in forest of wandering.