Не работает код роблокс студио. Плс помогите.

Помогите пж с ошибкой: Players.Lav30896.PlayerGui.CharacterSelectorGUI.CoreScript(Local):8: attempt to call a RBXScriptSignal value. В Roblox Studio, вот сам скрипт где он ищет ошибку:
local UIS = game:GetService("UserInputService")
local TS = game:GetService("TweenService")

local CoreEvent = game.ReplicatedStorage:WaitForChild("CoreEvent")
local Player = game.Players.LocalPlayer
local CharacterSelectorGUI = script.Parent

CharacterSelectorGUI.DropdownButton.MouseButton1Click(function()
if CharacterSelectorGUI.DropdownButton.DropdownFrame.CharacterButton.BackgroundTransparency == 1 then
for i,v in pairs(CharacterSelectorGUI.DropdownButton.DropdownFrame:GetChildren()) do
if v:IsA("TextButton") then
local OpenTween = TS:Create(v, TweenInfo.new (1,Enum.EasingDirection.Out), {TextTransparency = 0, BackgroundTransparency = 0.5})
OpenTween:Play()
end
end
elseif CharacterSelectorGUI.DropdownButton.DropdownFrame.CharacterButton.BackgroundTransparency == 0.5 then
for i,v in pairs(CharacterSelectorGUI.DropdownButton.DropdownFrame:GetChildren()) do
if v:IsA("TextButton") then
local CloseTween = TS:Create(v, TweenInfo.new (1, Enum.EasingDirection.In ), {TextTransparency = 1, BackgroundTransparency = 1})
CloseTween:Play()
end
end
end
end)

for i,v in pairs(CharacterSelectorGUI.DropdownButton.DropdownFrame:GetChildren()) do
if v:IsA("TextButton") then
v.MouseButtoneClick:Connect(function()
CoreEvent:FireServer("CharacterSelect",v.Text)
end)
end
end

UIS.InputBegan:Connect(function(Input,processed)
if Input.UserInputType == Enum.UserInputType.Keyboard and processed == false then
if Input.KeyCode == Enum.KeyCode.One or Input.KeyCode == Enum.KeyCode.Two or Input.KeyCode == Enum.KeyCode.Three or Input.KeyCode == Enum.KeyCode.Four then
CoreEvent:FireServer("Skill", Input.KeyCode.Name )
end
end
end)