Is the ambient being counted as nil? Nil?

I am trying to have the lighting changed locally for each player, FogEnd is working fine but when I test the game the Ambient goes to 51000, 51000, 51000. What am I doing wrong? (Note: the value of Ambient is 200)

Lightining = game.Lighting
Ambient = Lightining.Ambient
FogEnd = Lightining.FogEnd
ReplicatedStorage = game.ReplicatedStorage
LightingFolder = ReplicatedStorage.Lighting
while true do
    wait()
    while game.ReplicatedStorage.StateTag.Value == 'Start' and game.Players.LocalPlayer.Character:FindFirstChild('MatchTag') do
        wait()
        game.Lighting.Ambient = Color3.new(script.Ambient.Value,script.Ambient.Value,script.Ambient.Value)
        game.Lighting.FogEnd = script.FogEnd.Value
    end
    game.Lighting.Ambient = Color3.new(150,150,150)
    game.Lighting.FogEnd = 1000
end