This shuts down in online?

I have a script that makes a new pre-set character and it works in studio play solo but not online here is the code:

game.Players.PlayerAdded:connect(function(plr)
    plr.CharacterAdded:wait()
    local modl = game.ServerStorage.Preset:Clone()
    modl.Parent = workspace
    modl:MakeJoints()
    local char = plr.Character
    char:Destroy()
    plr.Character = modl
end)

if game.Workspace:FindFirstChild("Message") then
game.Workspace.Message:Destroy()
end

(it shuts down for some reason)