Navigate your way to the client folder,
From there go to
Client.java > Open it up > Ctrl+F "server =" > from there, change it to 127.0.0.1.
If that's already 127.0.0.1, ctrl+f "server.e" and change the numbers to 127.0.0.1, if there not already set to local host.
Then compile, and reload client.