How do I check if a player owns a pass and then team them?

That is the script when I use it it gives no errors in the console but also does not work. It is a normal script as the teaming appears not to work in local scripts. I hope I can get an answer soon.

Note: the script is meant for a TextButton.

local mps = game:GetService("MarketplaceService")
local gamepass = 5830313



function Click()
    game.Players.PlayerAdded:Connect(function(player)
 while true do
  if mps:UserOwnsGamePassAsync(player.UserId,gamepass) then
    plr.TeamColor = BrickColor.new("Plum")
else
    print("Player does not own pass.")
  end
  wait(5)
 end
end)
end



script.Parent.MouseButton1Click:connect(Click)