How can I turn this script into remote events?

local spawnloc = script.Parent.Name

script.Parent.CurrentOwner.Changed:Connect(function()

    if script.Parent.CurrentOwner.Value == BrickColor.new("Bright blue") then
        game.StarterGui.SpawnGui.Frame.Flag1.BackgroundColor3 = Color3.new(85/255, 170/255, 255/255)
        for i,v in pairs(game.Players:GetChildren()) do
            v.PlayerGui:FindFirstChild("SpawnGui").Frame:FindFirstChild(spawnloc).BackgroundColor3 = Color3.new(85/255, 170/255, 255/255)
        end

    elseif script.Parent.CurrentOwner.Value == BrickColor.new("Bright red") then
        game.StarterGui.SpawnGui.Frame.Flag1.BackgroundColor3 = Color3.new(255/255, 80/255, 80/255)
        for i,v in pairs(game.Players:GetChildren()) do
            v.PlayerGui:FindFirstChild("SpawnGui").Frame:FindFirstChild(spawnloc).BackgroundColor3 = Color3.new(255/255, 80/255, 80/255)
        end

    elseif script.Parent.CurrentOwner.Value == BrickColor.new("Fossil") then 
        game.StarterGui.SpawnGui.Frame.Flag1.BackgroundColor3 = Color3.new(207/255, 207/255, 207/255)
        for i,v in pairs(game.Players:GetChildren()) do
            v.PlayerGui:FindFirstChild("SpawnGui").Frame:FindFirstChild(spawnloc).BackgroundColor3 = Color3.new(207/255, 207/255, 207/255)
        end
    end

end)

This script doesn't work in a server script, it doesn't change the player's GUI for some reason, so how would I turn this into a remote event script to work?