Script disappears from ServerScriptService?

I'm trying to make a round system for my game but.. whenever I playtest it, the script disappears from ServerScriptService and the timer is set to -1. Could someone please help? Here is the script:

local RS = game:GetService("ReplicatedStorage")

local SS = game:GetService("ServerStorage")

local roundStarted = RS:WaitForChild("roundStarted")
local Timer = RS:WaitForChild("Timer")
local Status = RS:WaitForChild("Status")

--// MAIN SCRIPT --\\


while wait() do
	
	if Status.Value == "Intermission" then
		
		Timer.Value = 30
		
		SS:WaitForChild("Teleport Pads").Parent = workspace
		
		SS:WaitForChild("WaitForPlayers").Parent = workspace
	
		while wait(1) do
			Timer.Value =- 1
		
			if Timer.Value == 0 then
				
				Status.Value = "Round"
			
				break
					
			end
		end
	end
	
	if Status.Value == "Round" then
		
		Timer.Value = 80
		
		workspace:WaitForChild("Teleport Pads").Parent = SS
		
		workspace:WaitForChild("WaitForPlayers").Parent = SS
		
		while wait(1) do
			Timer.Value =- 1

			if Timer.Value == 0 then

				Status.Value = "Intermission"

				break

			end
		end
	end
end