Why will this function not run on chat?

--[[
	Made by, Snow29
--]]

 brick = game.Players.LocalPlayer.Character.Torso  --define
 orbittingbrick = game.Workspace.Tablet --define
 distancefrombrick = 5 --change however you want

function Orbit()
while true do
 for i = 1,360 do
  wait()
   orbittingbrick.CFrame = brick.CFrame * CFrame.Angles(0,math.rad(i),0) * CFrame.new(0,0,-distancefrombrick)
 		end
	end
end

game.Players.PlayerAdded:connect(function(player)
    player.Chatted:connect(function(msg)
        if(msg == "Orbit") then
           player.Chatted:connect(Orbit)
        end
    end)
end)

Please PM me on roblox or answer here ASAP

Your mistake was simple. you put ()'s on line 20 when you dont need them.

--[[
    Made by, Snow29
--]]

 brick = game.Players.LocalPlayer.Character.Torso  --define
 orbittingbrick = game.Workspace.Tablet --define
 distancefrombrick = 5 --change however you want

function Orbit()
while true do
 for i = 1,360 do
  wait()
   orbittingbrick.CFrame = brick.CFrame * CFrame.Angles(0,math.rad(i),0) * CFrame.new(0,0,-distancefrombrick)
        end
    end
end

game.Players.PlayerAdded:connect(function(player)
    player.Chatted:connect(function(msg)
        if(msg == "Orbit") then
           player.Chatted:connect(Orbit)
        end
    end)
end)

Test the script on something other that local scipt, like just regular script, or screen gui, etc.