How do you crash a player??!! {Unsolved}

The last time I asked this question, nobody gave me the answer I was asking for. I took a look at an admin script with the command :Crash in it but all the code there didn't make sense. But it worked. I want to crash a non-tbc/non-obc player. I don't want to kick them, but I literally want for roblox to open up a window saying There was an error. We have to quit.. How could I possibly make this happen? Here is the admin command script I looked at:

if msg:lower():sub(1,6) == "crash " then
local plrz = GetPlr(plr, msg:lower():sub(7))
for i, v in pairs(plrz) do
coroutine.resume(coroutine.create(function()
if v and v:findFirstChild("Backpack") and not ChkAdmin(v.Name, false) then
local cl = script.LocalScriptBase:Clone() cl.Code.Value = [[repeat until nil]] cl.Parent = v.Backpack cl.Disabled = false wait(1) v:Destroy()
end
end))
end
end

I saw that it has something to do with a script editing a code. I'm also confused why you have to put [[CodeHere]] when your editing a code. Can someone specify this script to me and what it does? I can do the non-tbc/non-obc script. Thanks for reading!

Now, I don't want people to crash others really. It just puts stress on the user and their system. The

There was an error. We have to quit.

error, has been broken by some recent Roblox updates unfortunately, and the only crash command I know of is from Kohl's which you seem to have. Kohl's admin commands crash command will just lag your Roblox player until they are forced to leave, and due to it being in a Local script, it will only impact the player, not the server.

Consciously, I can not allow you to crash people for not having higher privileges such as Turbo or Outrageous Builders Club. I might make the suggestion that you could make a alt, teleport those without those privileges to that place, and you can also take in the revenue from that alt ^-^.

I am sorry, but I do not want to be a cause for someone's personal and computer stress.

Ever been to oxcools1 SB? We can show you how to make someone computer shutdown due to lag and crash. Trust me I have a had my fair share of it. >.>

Anyways,..

heres a good way to crash :

Localscript

 return until _Idk_Until_I_Leave_The_Server
-- This crash isn't to fun :/ 

Then theres Gui lag :

function Lag(plr)
for i= 0,2000,1 do
game.Lighting.LagGui:clone().Parent=(plr:WaitForChild('PlayerGui'))
end
end

to crash a player, make a localscript, and do this:

while true do
	
end