Yes that needs a lot of editing but you have to let us know what type of server you want to connect to.
Paper 7.6 or 8.1 etc.
From memory that above code was for 7.6
If your setting up your own chat site there will be a lot of other issues like gender and profiles.
Remember paper servers can be hacked easy by idiots that want to be silly.
If you just want one room that can be set up for you with some chat pages loaded to your site server.
I now set up groups like this and all have pages loaded with direct access to there own room on my server.
Eg. groups site
Let us know if you need help...
Cheers Pk