Why does this work on studio only?

I made this script, and it only runs in studio, i have asked this question several times and i got nothing much but this line of code that someone told me to put on the top of every local script.

--This is the code i got told to put on top of a local script
repeat wait() until game.Players.LocalPlayer.Character

So i did put the code on top of the local script and it didnt work, but only on studio.

repeat wait() until game.Players.LocalPlayer.Character
Player = game.Players.LocalPlayer
Cube = script.Parent
local Workspace = game.Workspace
mouse = Player:GetMouse()


local SwordFold = game.ServerStorage.Sword


local Sword = {
"Sword"

}


function Click()
while true do
for i,v in pairs(SwordFold:GetChildren())do
if v.Name == Sword[math.random(1, #Sword)] then
wait()
v.Enabled = true
local Gear = v:Clone()
Gear.Parent = Player.Backpack
Sound:Play()
print(Player.Name,"Got", v.Name.."!")
wait()
script.Parent:Destroy()

end
end
end


		




end




Cube.Activated:connect(Click)
Cube.Equipped:connect(onEquipped)