How do you use remote events?

To be more specific, i'm trying to make a game (again XD). I was trying to send multiple augments from a server script to a local script. I got this error from the server script : Unable to cast value to Object And this error from the local script : attempt to call field 'OnClientEvent' (a userdata value)

Code in server script :

	for i,v in pairs(game.ReplicatedStorage.Maps:GetChildren()) do --This part chooses the map, mybe a gamemode aswell, someday
		if not ChoseMapBolean then
			local RandomMapValue = math.random(1,2)
			if RandomMapValue == 2 then
				print(v)
				ChosenMap = v
				ChoseMapBolean = false
				script.RemoteEvent:FireClient({v , "ForMap"}) -- The first part of are table is the value, the second is what its for and before you say "OMG lamo wat if al da math.randoms are 1" I have a fix for that
			end
		end
	end

Code in local script :

game.ServerScriptService.GameScript.RemoteEvent.OnClientEvent(function(Aguments)
	if Aguments[2] == "ForMap" then 
		SG.VoteForMap.JoinButton.Text = "Classic | " .. Aguments[1] .. " | PLayers : idk"
	end
end)