You need to setup your own custom server http://exodusesports.com/guides/planetary-annihilation-dedicated-server-setup/
Best thing you can do currently it's to get expensive cloud hosting for a few hours/days or find someone else who going to host your game on powerful dedicated server as usual "virtual servers" that cost 5$/mo not going to handle it.
The colour table has moved, not yet reflected in the guide. This has been moved: /media/server-script/team_color_table.js To: /media/server-script/lobby/color_table.js When following the guide, alter paths accordingly.