Why does my whitelist for my UTG kick me when it used to work?

Hey there, this script has a few flaws:

• You're checking on the client(can be exploited easily)
• You're using a numeric loop for a table(bad habit, and not needed)
• The player gets kicked at the first instance that they are not whitelisted at.
• You're using player names, instead of Ids, which is also a bad habit, in case someone changes their name.

As a solution:

• Make a remote function in ReplicatedStorage, in my example its named VerifyRemote
• Make a server script in Server Script Service
• Keep the current localscript where it is

The server script should look like this: (I changed the names to their IDs for you)

local remote = game.ReplicatedStorage.VerifyRemote
local allowed = {
	[159722433] = true,
	[307527557] = true
}
game:GetService("Players").PlayerAdded:Connect(function(plr)
	if not allowed[plr.UserId] then
		remote:InvokeClient(plr,false)
		wait(.1)
		plr:Kick("You are not whitelisted and/or permitted to use JoJUTG")
	else
		remote:InvokeClient(plr,true)
	end
end)

And your localscript should now look like this:

local remote = game.ReplicatedStorage.VerifyRemote
local plr = game.Players.LocalPlayer 
script.Parent.Frame.Visible = false

remote.OnClientInvoke = function(result)
	if result then
		script.Parent.Parent.SPTW1.Playing = true
		script.Parent.Frame.Visible = true
		script.NotWhitelsited:Stop()
		script.Parent.NotWhitelisted.Visible = false
	else 
		script.Parent.NotWhitelisted.Visible = true
		script.NotWhitelsited:Play()
	end
end

Tell me if something doesn't work or you don't understand something.

I'd also like to mention since you're making some frames visible on the client, you'd probably want to have server checks to make sure that the user is on the allowed list to use anything restricted.