Lost Connection to Mapserver is Paragon Chat's way of saying it can't reach the XMPP server. I'm on Paragon Chat now, it's been up all along during this hour. I presume your internet at home works otherwise I wouldn't be reading this.
Could be a regional Internet issue? Try running this in the Command Prompt:
ping chat.cohtitan.com -t
If you see "Response timed out." you have a issue between your house and the Paragon Chat server. (Press CTRL-C to end Ping, or close the Command Prompt window.)
Wrong advice: see Codewalker below. The above would apply if characters stopped moving in-game and you haven't mapserved.