messageClient('', "Can't Change Status! Please Leave the Minigame First!");
messageAll('', %client.name + "Changed his/her Status to:\c6 Away [AWAY]");
In the first one, you're using messageClient, but haven't specified a client to message. Try this:
messageClient(%client,'', "\c5You can't change status while in a minigame.");
For the second, you can't 'add' strings together like that - you have to use the @ (join two strings) or SPC (join with a space) operators. Try this:
messageAll('', "\c3" @ %client.name SPC "\c5 has updated their status to: \c3AFK");
Most of these questions seem to be to do with the same Add-On - post your questions in one topic, that way it doesn't take up the Coding Help board as much.