Why the script isn't doing anything when i try to clone a ball?

I want to spawn a cloned part but is not spawning. I don't get any error but when i remove "wait(1000)" it works and crashes my roblox studio. Also i want it to spawn random between 2 parts, but i don't know how to do it, maybe someone could help me.

Script:

local part = workspace.Handle
local Event = game.ReplicatedStorage.Fire

local Entitati = 0
local SpawnEntitati = true


while SpawnEntitati == true do
	if Entitati <= 50 then
		wait(1000)
		print("Ai asteptat 1000 minisecunde (o secunda)")
		local cpart = part:Clone()
		cpart.Parent = workspace
		cpart.Position.X = part.Position.X
		cpart.Position.Y = part.Position.Y + 1
		cpart.Position.Z = part.Position.Z
		print("Part creat.")
		Event:FireAllClients(cpart)
		print("RemoteEvent Fire")
	end
	if Entitati >= 50 then
		SpawnEntitati = false
		print("Spawn entitati = false")
	end
end

Also i tried this code to spawn random between 2 parts:

local part = workspace.Handle
local Event = game.ReplicatedStorage.Fire
local pos1 = workspace.pos1
local pos2 = workspace.pos2

local Entitati = 0
local SpawnEntitati = true


while SpawnEntitati == true do
	if Entitati <= 50 then
		wait(1000)
		print("Ai asteptat 1000 minisecunde (o secunda)")
		local cpart = part:Clone()
		cpart.Parent = workspace
		cpart.Position = math.random(pos1.Position, pos2.Position)
		print("Part creat.")
		Event:FireAllClients(cpart)
		print("RemoteEvent Fire")
	end
	if Entitati >= 50 then
		SpawnEntitati = false
		print("Spawn entitati = false")
	end
end

Photo

IS NOT A LOCALSCRIPT.

edit: Thanks both for helping me. Thought it was in miliseconds :D

You're waiting for one thousand seconds, not miliseconds!

Wait takes a number in seconds as its argument. Otherwise it waits for three miliseconds, 0.03 seconds.