Why can't use my public ip to login bungeecord?

15:50:55 [warn] Could not bind to host tbknetwork.servegame.com/116.48.xx.xxx:25565

java.net.BindException: Can't assign requested address

at sun.nio.ch.Net.bind0(Native Method)

at sun.nio.ch.Net.bind(Net.java:436)

at sun.nio.ch.Net.bind(Net.java:428)

at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:214)

at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74)

at...

Why can't use my public ip to login bungeecord?